## Precalculus (6th Edition) Blitzer

a. Multiply b, 7 times b$\times$b$\times$b$\times$b$\times$b$\times$b$\times$b=$b^{7}$ b. Multiply b, 10 times b$\times$b$\times$b$\times$b$\times$b$\times$b$\times$b$\times$b$\times$b$\times$b=$b^{10}$ c. When multiplying exponents with the same base, the powers are added together.