Find the solution set of the equation. If the equation has no solution write ? and if the equation is an identity so state.
+ 
= 
- 
A. 
B. ?
C. {44}
D. 
Answer: D
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Determine whether the relation is a function.Tips earned by servers at a restaurant one evening:
A. A function B. Not a function
Plot and label the points indicated by the coordinate pairs.A(0, -2), B (5, 0)
A. 
B. 
C. 
D. 
Solve the problem.A plane takes off from an airport on the bearing S29°W. It continues for 20 minutes then changes to bearing 
and flies for 2 hours 20 minutes on this course then lands at a second airport. If the plane' s speed is 420 mph, how far from the first airport is the second airport? Round your answer correct to the nearest mile.
A. 1110 mi B. 1010 mi C. 1111 mi D. 1011 mi
Solve the problem.If P dollars are invested at a simple interest rate r (in decimals), the amount A that will be available after t years is A = P + Prt. Find the total amount in an account if $400 is invested at 19.1% simple interest for 3.5 years.
A. $267.40 B. $667.40 C. $473.30 D. $476.40