Sandra is packing for a summer vacation. She is limited to two suitcases for all of the things she wants to take with her. She has a large suitcase that is 3 ft. long, 2 ft. wide, and 4 ft. high. Her small suitcase 3 ft. long, 1 ft. wide, and 3 ft. high.
How much total room does Sandra have in her suitcases?
A) 9 cubic feet
B) 18 cubic feet
C) 24 cubic feet
D) 33 cubic feet

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

it shoild be o

step-by-step explanation:

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

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 -