What is the Circumference of this circle

G(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

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

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?