If the sum of interior angle measures of a polygon is 720°, how many sides does the polygon have?

a. 7

b. 8

c. 9

d. 6

Determine the future value of a $25000 investment at an annual rate of 4.85% compounded quarterly for 6 years.

Four times the difference of a number and seven is 12

Two angles are vertical angles. One is labeled 2x. The other angle is labeled (x+30). Find the value of x.

In a certain algebra 2 class of 29 students, 22 of them play basketball and 12 of them play baseball. there are 9 students who play both sports. what is the probability that a student chosen randomly from the class plays basketball or baseball?

Rock can read 10 books in 30 minutes. how long does it take rock to read 15 books, if the speed is consistant.

What expression represents six times a number plus 8 times a number

What is a reasonable estimate of - 3 4 5 + (-5.25) and the actual value?

a restaurant holds 150 diners. when you arrive and are finally seated, the resterant is 2/5 full how many diners are in the restaurant

How many times does 46 go into 351

The circumference of a circle is 16Pi ft. The radius is ft.