Trey bakes 70 cupcakes for the school Bake Sale. Worried they might run out, he bakes some extra and now has 112 cupcakes. What is the Percent Change in the number of cupcakes?

What is the solution of sqrt x+2-15=-3

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Find the domain and range of the following function f(x) = 51x - 21+ 4