What is the approximate area of the shaded sector in the circle shown below? A. 150.8 cm2 B. 6.28 cm2
C. 37.7 cm2
D. 3.14 cm2

What is the slope of a line that is perpendicular to y = 3x + 1

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?