In. What is the volume of this aquarium? in? in3 5 in. Bx h 20 in. B = 170 in? 14 In. 12 in. Top in.

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 -

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce