The diagram shows the measurements of a frame into which concrete is poured to make steps. The steps are shaped like rectangular prisms. Which expressions can be used to find the volume of concrete used for the steps?

Select all the correct answers

A
(6 x 16 x 8) + (7 x 14 x 8)
B
(6 x 16 x 6) + (14 x 16 x 7)
C
(6 x 16 x 6) + (14 x 7 x 6)
D
(6 x 6 x 14) + (16 x 6 x 7)
E
(6 x 16 x 13) + (8 x 16 x 7)

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

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 -

it should be a.

hope it