Which of the following are equivalent expressions? Select all that apply. (Select all that apply.)
$$3r2+29=3⋅r⋅r+29
$$4q2+3m=4⋅2⋅q+m⋅m⋅m
$$7e+18=7+e+18
$$40−v3=40−v⋅v⋅v
$$2b+4y=b+b+y+y+y+y

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

asdsaddsa

step-by-step explanation:

i think the answer would be c