Simplify (4/5)-(-3/5)

Solve 2^x=32 and rewrite this equation in a logarithmic form

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.

What is the perimeter of a rectangle if the length is 5 and the width is x?