PLEASE HELP!

1) Purnima filled her garden with 8 cubic feet of organic dirt. The garden is a rectangular prism with a volume where l is length, w is width, and h is depth. If the garden has a depth of 0.8 feet and is 2 feet wide, how long is the garden?

2) Evaluate 27 × a^-2 for a = 3

Question

PLEASE HELP!

1) Purnima filled her garden with 8 cubic feet of organic dirt. The garden is a rectangular prism with a volume where l is length, w is width, and h is depth. If the garden has a depth of 0.8 feet and is 2 feet wide, how long is the garden?

2) Evaluate 27 × a^-2 for a = 3

anonymous · Answer

1) Start with the formula for the volume of a rectangular prism of Length, L, width, W, and depth, d. Substitute V = 8 cu.ft., W =2 ft., d = 0.8 ft. Simplify. 2) http://www.wolframalpha.com/bing/?i=27+x+a%5e-2&expl=3