Suppose each cube in this figure is a 1/2 -inch cube. Select all that are true.

The dimensions of this prism are 3 inches × 2 inches × 2 1/2 inches.
The volume of this prism is 15 cubic inches.
The volume of this prism with 1/2 -inch unit cubes is 1/2 the volume of the prism with 1-inch cubes.
There are 96 cubes in the prism.

sine

step-by-step explanation:

answer: x=3 and y=4

step-by-step explanation:

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 -