Dana’s parents add $2 to her savings account for every $20 she puts in the account. Which equation models the relationship between the amount her parents put in the account, p, and the amount Dana puts in the account, d?

A) p =  d

Step-by-step explanation:20(which is d) x  = 2 (which is p)

cross checking always helps!

D. p = 10d

Step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18