Mark bought gifts for his friends, and each gift cost $9. Let y represent the total cost and x represent the number of gifts. Write an equation to represent the proportional relationship between the total cost and the number of gifts he bought. (4 points) a y = 8x

b y = one-eighth x

c y = 9x

d y = one-ninth x

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

coins of silver or gold

step-by-step explanation:

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .