$11,700 is invested in a compound interest account paying 3.9% compounded quarterly. how much will be in the account after 18 years?

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone.which are equivalent equations?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Which shows the graph of the solution set of 3y – 2x > –18?