Acircle has an area of 153.86 square inches. using 3.14 for pi, find the radius and circumference of the circle. round your answer to the nearest hundredth when necessary.
a) r = 7 inches .. c = 43.96 inches
b) r = 24.5 inches ..
c = 153.86 inches
c) 49 inches .. c = 98 inches
d) r = 8 inches .. c = 50.24 inches

Which expression is equivalent to 2^4y^3

What is the first quartile of the data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.