Which of the following is 16 60 in simplest form

Which matrix multiplication is possible?

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)