Solve the problem.Martha can rake the leaves in her yard in 2 hr. Her brother can do the job in 3 hr. How long will it take them to do the job working together?
A. 6 hr
B. 1
hr
C. 
hr
D. 
hr
Answer: B
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Find the perimeter or circumference. Use ? ? 3.14 when needed.
Round to one decimal place.
A. 36.1 mi B. 72.2 mi C. 415.3 mi D. 144.4 mi
Simplify the algebraic expression.-5(3x - 6)
A. -15x + 30 B. -15x + 6 C. -15x - 30 D. 15x + 30
Solve the problem.Among gamblers playing the slot machines and winning at a certain time (at a certain casino), the following was determined to be true about one hour later: 45% were still winning; 27% were losing; 10% had switched from the slots to table games (blackjack, roulette, etc.); and 18% had left the casino. Similarly, among gamblers playing the slots and losing at a certain time, the following was determined to be true about one hour later: 34% were winning; 47% were still losing; 15% had switched from the slots to table games; and 4% had left the casino. Among gamblers playing the slots and losing (at that certain time), what percentage eventually leave the casino without first trying the table games? Round your answer to the nearest whole number.
A. 42% B. 46% C. 56% D. 40%
Find the perimeter the trapezoid.
A. 26 m B. 200 m C. 66 m D. 36 m