Denice purchased a tv for 275. eight months later, the same tv was selling for 215. what was the percent of decrease in the price

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

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

Iknow the answer but the calculator doesn't seem to give the right one