Simplify by rationalizing the denominator. Write your answer in a + bi form.
A. 
- 
i
B. 
- 
i
C. 
+ 
i
D. 
- 
i
Answer: C
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Solve the equation.
= 
A. 15
B. 
C. No solution
D. 
Simplify the fraction, if possible.
A. undefined
B. -25
C. 
D. 25
Use the check register find the ending balance.Christopher Zachar had a balance of src="https://sciemce.com/media/4/ppg__10622191728__f1q2g6.jpg" alt="" style="vertical-align: -4.0px;" /> Then on 
in his checking account before writing three checks and making a deposit. On 
he wrote check 
to Quick Clean for 
and check 
to Mick's Hardware for 
he made a deposit of 
and wrote check 
to Cary's Plumbing for 
Record the checks and deposit in Christopher's check register, and then find the ending balance.
A. $6077.14
B. $4834.06
C. $5465.86
D. $5311.21
Solve the problem.Two friends decide to meet in Chicago to attend a Cub's baseball game. Rob travels 
in the same time that Carl travels 
Rob's trip uses more interstate highways and he can average 
more than Carl. What is Rob's average speed?
A. 61 mph B. 58 mph C. 57 mph D. 65 mph