Solve the problem.It costs $27 per hour plus a flat fee of $19 for a plumber to make a house call. After writing an equation for this situation, what is the total cost to have a plumber come to a house for 4 hours?
A. $108
B. $517
C. $127
D. $103
Answer: C
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Solve the problem.A high-wattage lamp on the top of a pole casts a circle of light around the pole with a radius of 
The pole's location is 
east and 
south of a round intersection. Using the road intersection as the origin, write an equation for the outer boundary of the circle of light.
A. (x - 14)2 + (y + 19)2 = 2025 B. (x + 14)2 + (y - 19)2 = 2025 C. (x - 14)2 + (y - 19)2 = 2025 D. (x - 14)2 - (y - 19)2 = 2025
Solve the equation.x + 2 = 20
A. x = 18 B. x = 22 C. x = 8 D. x = 40
Solve the problem.Evaluate 
at t = 
? for the function w(x, y) = x2 - y2 - 2x; x = cost, y = sin t.
A. 0 B. 2 C. -6 D. -4
If the line passing through the points 
is parallel to the line passing through the points 
and 
class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_3934cbf29cfd4e52a14a40d98" />, what is the value of a?
?
A. 
B. 
C. 
D. 
E. 