A porcelain table top is in the shape of a rectangular prism. The table top has a length of 12 inches, a width of 12 inches, and a height of 1.5 inches. Porcelain has a density of 2.4 grams per cubic centimeter. Find the mass of the table top to the nearest gram.

i think it is 70

step-by-step explanation:

if x = 1, then the answer is 3.5

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 -

are ya tryin to ask something or is this a statement