## Basic College Mathematics (10th Edition)

(a) (b) Use the conversion formula. $F=\frac{9\times C}{5}+32$ $\frac{9\times4}{5}+32=\frac{36}{5}+32=7.2+32=39.2F$ $\frac{9\times24}{5}+32=\frac{216}{5}+32=43.2+32=75.2F$