Answer:
5400
Step-by-step explanation:
to get volume you multiply length by width by height. so 15 x 20 x 9 which equals 2700. but there are 2 prisms, so you multiply by 2 which equates to 540
Answer: 5400 cm^2
15 x 20 x 9 x 2 = 5400
Hugh spent 2.25 more hours then Nella at the injection factory.
First, I took eight and a quarter hours and subtracted six hours from it and got 2.25 or two and a quarter hours.
