Can anyone give a clear explanation on how to solve this?

Find the missing factor in exponential form 48^2=3^2 • ?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )