Simplify.
A. 16
B. 256
C. 128
D. 32
Answer: A
Mathematics
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Solve the proportion: 
= 
A. 480 mL B. 1200 mL C. 30 mL D. 250 mL
Mathematics
Solve the system by the substitution method.
A. (-4, 3), (4, 3) B. (9, 68), (16, 243) C. (-4, 3), (-3, -4), (3, -4), (4, 3) D. (-3, -4), (3, -4)
Mathematics
Solve for base in the problem. Round to the nearest hundredth, if necessary.$20 is 5% of $ .
A. $40.00 B. $100.00 C. $4000.00 D. $400.00
Mathematics
Solve the problem.Two cars leave a city and head in the same direction. After 2 hours, the faster car is 22 miles ahead of the slower car. The slower car has traveled 84 miles. Find the speeds of the two cars.
A. 31 mph and 42 mph B. 42 mph and 53 mph C. 110 mph and 121 mph D. 44 mph and 55 mph
Mathematics