The amount of pizza left in the buffet line is given by the function a(t) = 50(0.8)t where t stands for the number of minutes the buffet is open and a(t) stands for the amount of pizza in any given time. how much pizza is there after five minutes?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.