Find the length of the diameter of a circular silo with circumference 64 ft. Use the rules for working with measurements.
A. The diameter is 30.6 ft.
B. The diameter is 40.7 ft.
C. The diameter is 81.5 ft.
D. The diameter is 20.4 ft.
E. The diameter is 201 ft.
Answer: D
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Solve the problem.Numbers is a game where you bet $1.00 on any three-digit number from 000 to 999. If your number comes up, you get $600.00. Find the expected winnings.
A. -$0.42 B. -$0.40 C. -$1.00 D. -$0.50
Simplify the expression. Assume that all variables are positive when they appear.
A. 2y4 
B. 2x7y8 
C. 2x3y4 
D. 2x3y4 
Solve the problem. Round to two decimal places if needed.An irrigation sprinkler in a field of lettuce sprays water over a distance of 30 feet as it rotates through an angle of 160°. What area of the field receives water?
A. 400 square feet B. 41.89 square feet C. 1256.64 square feet D. 2513.27 square feet
Name the fraction that makes the following true.
x = 28
x = 28 ? 
x = 20
A. 
= 
B. 
= 
C. 
= 
D. 
= 