Translate to an algebraic expression.Alex had y dollars before spending $31.50 for a book. How much did he have after the purchase?
A. y - $31.50
B. $31.50 + y
C. $31.50y
D. $31.50 - y
Answer: A
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Solve the simple interest problem. Round to the nearest cent.If Janus makes an investment of $70,000 at a simple interest rate of 5% for 3 years, then what is the overall amount of money that she will have at the end of the 3-year period?
A. $80,500.00 B. $80,442.43 C. $80,700.00 D. $80,400.00
Find the unit vector having the same direction as v.v = 12j
A. 
j
B. i
C. j
D. 
j
Solve the problem.A formula used to determine the velocity v in feet per second of an object (neglecting air resistance) after it has fallen a certain height is 
where g is the acceleration due to gravity and h is the height the object has fallen. If the acceleration g due to gravity on Earth is approximately 32 feet per second per second, find the velocity of a bowling ball after it has fallen 70 feet. (Round to the nearest tenth.)
A. 4480 ft per sec B. 47.3 ft per sec C. 11.8 ft per sec D. 66.9 ft per sec
Provide an appropriate response.Find the complement of an angle whose measure is 34°24'40".
A. 55°36'20" B. 56°36'20" C. 55°35'19" D. 55°35'20"