18. If a - b = 12 and b/2 = 10, what is the value
of a +b ?
A) 2
B) 12
C) 32
D) 52

What is the approximate circumference of the circle shown below?

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Which of the following represents the range of the graph of f(x) below