91Ó°ÊÓ

Round off or add zeros to the following calculated answers to give a final answer with three significant figures: (2.2)

a. $58.703\mathrm{mL}$

b. localid="1652069638449" $3×{10}^{-3}s$

c. $0.010826\mathrm{g}$

d. $1,7484×{10}^3\mathrm{ms}$

A dessert contains $137.25\mathrm{g}$of vanilla ice cream. $84\mathrm{g}$of fudge sauce, and $43.7\mathrm{g}$of nuts.

a. What is the total mass, in grams, of the dessert?

b. What is the total weight, in pounds, of the dessert?

A fish company delivers $22\mathrm{kg}$of salmon, $5.5\mathrm{kg}$of crab, and $3.48\mathrm{kg}$of oysters to your seafood restaurant. (2.3,2.6 )

a. What is the total mass, in kilograms, of the seafood?

b. What is the total number of pounds?

In France, grapes are $2.20\mathrm{lb}$per kilogram. What is the cost of grapes, in dollars per pound, if the exchange rate is $1.14\text{dollars/euro}$.