Which of the following is a geometric series?

A. 40 + 50 + 60 + 70

B. 40 + 42 + 44 + 46

C. 40 + 80 + 40 + 120

D. 40 + 20 + 10 + 5

Convert 7 centimeters to millimeters.

The number of triangles is 1/3 the number of sides

203710 times 3828392

A convex polygon has 6 sides what is the sum of its interior angles

People at the state fair were surveyed about which type of lemonade they preferred. The results are shown below.

The height reached by amal's rocket was 1/4 of the height reached by min's rocket. Amal's rocket REAched a height of 15 meters. Which equation could be used to find the height reached by min's rocket

a lab technician must screen 175 slides under the microscope each week. if she works 7 hours a day, 5 days a week, how many slides, on average, must she screen in one hour?

Lisa bought five CDs from the store. The price of each CD was the same. After she bought the CDs, her account balance showed a change of - $64.95. What would have been the change to Lisa's account balance had she only bought one CD from the store?

how do i add this 9 7/8 + 6 5/8 + 3 3/8

The displacement, d, in millimeters of a tuning fork as a function of time, t, in seconds can be modeled with the equation d = 0.6 sin (3520rt). What is the frequency of the tuning fork? A, 1/3520 Hz B. 1/1760 Hz C. 1760 Hz D. 3520 Hz