What is the circumference of a circle with a radius of 7 mm?

Which of the following is true for the relation f(x)=2x^2+1

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall