If the measure of angle abc is 57 degrees, what is the measure of arc ab

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

How can you tell when x and y are not directly proportional?