Evaluate the given expression
8•(5+4)-6•9+7

25

Step-by-step explanation:

Followin PEMDAS first parentheses will be (5+4)=9 then multiplication.8x9=72 then multiply 6x9=54 then substract 72-54=18, last add 7. 18 + 7= 25

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

y + 11 = (1/4)(x + 16)

step-by-step explanation: