What is the area of the circle below, the circle has a radius 20.5 ft.
84 feet
92 feet
O 1319.59 ftsq
659.79 ftsa
O 128.74
O none

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

With finding limits of multi variable !