ack Which type of complexity is called exponential? a. n 3 O b. 2n O c. n 2 O d. no!

The sum of terms 50k2 from k=x through 7 is 115. What is x?

Write each expression in exponential form: 7.7.7.7.7.7.7.7.7

The number of ways of choosing r objects from n objects is called the number of ___________ of n objects taken r at a time and is given by the formula C(n, r) = ___________.