Solve the problem.What is the difference between sixty-nine and four hundredths and forty-eight and eight tenths?
A. 20.204
B. 20.96
C. 21.76
D. 20.24
Answer: D
Mathematics
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Solve the problem.The formula 
can be used to estimate the maximum safe velocity v, in miles per hour, at which a car can travel along a curved road with a radius of curvature r, in feet. To the nearest whole number, find the radius of curvature if the maximum safe velocity is 20 miles per hour.
A. 160 ft B. 400 ft C. 1000 ft D. 64 ft
Mathematics
Convert the units using two or three unit fractions.5
weeks = 
min
A. 3,326,400 B. 7920 C. 55,440 D. 924
Mathematics
Solve the problem.Jack's checking account had a negative balance of -$89. He deposited $49 into his account. What is his new balance?
A. $40 B. -$138 C. -$40 D. $138
Mathematics
Use the table of xy-values to make a line graph.
A. 
B. 
C. 
D. 
Mathematics