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what is the surface area of this rectangular prism? i-ready

answer:

hey whats up bro hers what i found!

step-by-step explanation:

1. find the area of two sides (length*height)*2 sides.

2. find the area of adjacent sides (width*height)*2 sides.

3. find the area of ends (length*width)*2 ends.

4. add the three areas together to find the surface area.

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

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.