Express the statement as an equation involving the indicated variables.The area A of a rectangle is the product of its length l and its width w.
A. A = l + w
B. A = lw
C. A = 2(l + w)
D. A = 
Answer: B
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Evaluate the numerical expression.-2431/5
A. 81 B. -27 C. 243 D. -3
Solve the problem.When an object falling from rest encounters air resistance proportional to the square of its velocity, the distance it falls (in meters) after t seconds is given by
where m is the mass of the object in kilograms, g = 9.8 m/s2 is the acceleration due to gravity, and k is a physical constant. A BASE jumper 
leaps from a tall cliff and performs a ten-second delay (she free falls for 10 s and then opens her chute). How far does she fall in 10 s? Assume 
style="vertical-align: -4.0px;" /> Round the answer to one decimal place if necessary. A. 14.6 m B. 331.1 m C. 365 m D. 73 m
Find the exact value of the expression.
A. 
B. 
C. 
D. 2
Solve the problem.Jim wants to plan a meal with 150 grams of carbohydrates and 1400 calories. If green beans have 7 grams of carbohydrates and 30 calories per half-cup serving and french fried shrimp have 9 grams of carbohydrates and 190 calories per three-ounce serving, how many servings of green beans and shrimp should he use?
A. 15 half-cup servings of green beans and 5 three-ounce servings of shrimp B. 7 half-cup servings of green beans and 9 three-ounce servings of shrimp C. 9 half-cup servings of green beans and 7 three-ounce servings of shrimp D. 5 half-cup servings of green beans and 15 three-ounce servings of shrimp