The sum of the ages of Martin and his son Sherwin is 47 years. Martin's age is 2 years more than 4 times the age of Sherwin. Find their present age.

Evaluate the following expression 1/3^2

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π