Answer
a. 7
b. 10
c. When multiplying exponents with the same base, the powers are added together.
Work Step by Step
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.
