Chapter 2, Problem 59E

Correct any answers that have the incorrect number of significant figures.

a. $34\cdot 00\times 567÷4\cdot 564=4\cdot 2239\times {10}^3$

b. $79\cdot 3÷0\cdot 004\times 35\cdot 4=7\times {10}^5$

c.89.763÷22.4581=3.997

d. $\left(4\cdot 32\times {10}^{12}\right)÷\left(3\cdot 1\times {10}^{-4}\right)=1\cdot 4\times {10}^{16}$