Evaluate the expression.
A. -4
B. 
C. 1
D. -1
Answer: D
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Identify the type of sampling described by the proposal.A writer for an art magazine randomly selects and interviews fifty male and fifty female artists.
A. cluster sample B. stratified sample C. simple random sample D. systematic sample E. convenience sample
Use a percent equation to solve the percent problem.What number is 90% of 359?
A. 32,310 B. 32.31 C. 323.1 D. 3231
Multiply. Simplify your answer.
× 
A. 
B. 
C. 
D. 
Solve.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 40 mph with a surface area of 31 ft2 experiences a drag of 186 N (Newtons), how fast must a car with 41 ft2 of surface area travel in order to experience a drag force of 455.1 N?
A. 74 mph B. 76 mph C. 71 mph D. 79 mph