Solve the problem.It costs $42 per hour plus a flat fee of $19 for a plumber to make a house call. What is an equation of the form 
for this situation?
A. y = 19x + 42
B. y = 19x
C. y = 42x
D. y = 42x + 19
Answer: D
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Find the limit.
A. 1
B. 
C. 0
D. Does not exist
If 
with B in QIV, find
?
A. 
B. ?
C. ?
D. ?
E. ?
Find the vertex, the focus, and the directrix of the parabola.3x2 - 30x - y + 77 = 0
A. Vertex: 
; Focus: 
; Directrix: y = 
B. Vertex: 
; Focus: 
; Directrix: x = 
C. Vertex: 
; Focus: (5, 14); Directrix: x = 10
D. Vertex: 
; Focus: (5, 5); Directrix: x = -1
Solve the problem.A famous golfer tees off on a straight 390 yard par 4 and slices his drive to the right. The drive goes 280 yards from the tee. Using a 7-iron on his second shot, he hits the ball 180 yards and it lands inches from the hole. How many degrees (to the nearest degree) to the right of the line from the tee to the hole did he slice his drive?
A. 41° B. 25° C. 53° D. 114°