The expression 2 + 4 ÷ 2 simplifies to 3. a: true. b: false 2. 17n + 2 is a numerical expression. a: true. b: false. 3. the variable expression for the phrase " two more than x" would be x + 2. a: true b: false 4. a verbal phrase for "6n - 4" is a: four more than six times a number b: the different of six times a number and four. c: four less than six and a number. d: the product of six and four less than a number. 5. evaluate (7² -9) ÷ ( 55 - 35). a: -34 b: 2 c: -4 d: 48 6: the variable expression for the phrase "two more than a number x) would be x - 2 a: true b: false 7: find the sum. -5 + ( -1 ) + 6 + 4 a: 7 b: -4 c: 6 d: 4 8: write the phase "18 more than 4 times a number. " as an algebraic expression. a: 4 + 18x b: 4x + 18 c: 4x - 18 d: 4 + x + 18 9: evaluate 5( 11 + 2² - 10 ) - 19. a: 106 b: 6 c: 66 d: 44 10: find the sum -5 + ( 6 ). a: 1 b: -11 c: 11 d: -1 11: find the sum of -5 + ( -2 ) + 3 is -6. a: true b: false 12: evaluate ( 13² - 2² ) ÷ (5). a: -15 b: 33 c: 169 d: 170 13: what is the opposite of 8? a: 8 b: 0 c: 1 d: -8

Step-by-step explanation:

1). The expression 2 + 4 ÷ 2 = 3 is given while its simplification gives 4

Therefore, Option B. False is the correct option.

2). 17n + 2 is a numerical expression.

Option A. True

3). Variable expression for the phrase " Two more than x " would be (x + 2)

It's A. True

4). A verbal phrase for "6n - 4" is Option B. The difference of six times a number and four.

5).(7² - 9) ÷ (55 - 35)

= (49 - 9) ÷ (20)

= 40 ÷ 20

= 2

Option B is the answer.

6). Variable expression for the phrase " Two more than a number x would be (x - 2)

It should be (x + 2)

Therefore, B. False is the answer.

7). -5 + (-1) + 6 + 4

= -5 - 1 + 6 + 4

= 4

Option D. is the answer

8). " 18 more than 4 times a number"

Algebraic expression will be 4x + 18

Option B. is the answer.

9) 5( 11 + 2² - 10) - 19

= 5(11 + 4 - 10) - 19

= 5(15 - 10) - 19

= 5×5 - 19

= 25 - 19

= 6

Option B. is the answer.

10). -5 + 6 = 1

Option A. is the answer.

11). -5 + (-2) + 3 = -6 is given

-5 + (-2) + 3 = -7 + 3 = 4

Therefore, B. False is the answer.

12). (13² - 2²) ÷ 5

= (169 - 4) ÷ 5

= 165 ÷ 5

= 33

Option B. is the answer.

13).Opposite of 8 means opposite in sign notation

So Option D. -8 is the answer.

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

2

step-by-step explanation: