If $38 is invested at a simple interest rate of 2% per year, what would the total account balance be after forty years?

Which formula gives the area of a triangle? a=1/2(b+h)

What values of c and d make the equation true?

If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem