(15-7)+(15-9)

7-9+15

7+9 - 15

15 – 7+9

15-(7+9)

7 - 15+9

DRAGADOPOP

DRAG AND DROP

АПТЕМ НЕРЕ

OPAGANDOROP

ANTEM HERE

add 7 and 9. then subtract 15

subtract 7 from 15. then add 9

the sum of 7 and 9 subtracted from 15

answer: -8.2562234e+13

it is true

step-by-step explanation:

all the combinations add up i used   calculator

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true

answer: need a picture

step-by-step explanation: