If the dimensions of a square are increased 10%, by what percent is the area increased?

What is the measure of the smallest angle in the diagram? 15 29 32 45

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)