If the amount of grapes harvested this year is 21% less than last year, what percent of the original amount was harvested?

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)