Basic College Mathematics (9th Edition)

Estimate 8 Exact $7 \frac{7}{8}$
$3 \frac{1}{2} \times 2 \frac{1}{4}$ Estimate 4 x 2 = 8 Exact $3 \frac{1}{2} \times 2 \frac{1}{4}$ = $\frac{7}{2} \times \frac{9}{4}$ = $\frac{63}{8}$ = $7 \frac{7}{8}$