Simplify the following expression. Show your work,
(a’b)(a2b2). a?
(ab2)3 63

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?