A housepainter mixed 6 gal of blue paint with yellow paint in order to make a green paint. Which ratio of blue paint to gallons of yellow paint will make the same shade of green paint?
a. 42:56
b. 7:9
c. 8:6
d.14:48

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

33/100 is what i got