In how many ways can a supermarket chain select 5 out of 18 possible sites for the construction of new supermarkets?

(x-5)1/2+5=2 what is possible solution of this equation

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?