Use a number line to find the sum.3 + (-4)
A. 7
B. -1
C. -7
D. 1
Answer: B
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Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $30 for the repairman to come to the house, to which a charge of $23 per hour is added. Find a linear equation that can be used to determine the labor cost, y, of a repair that takes x hours.
A. y = 23 + 30x B. y = 23x - 30 C. y = 30 + 23x D. y = 30 - 23x
Sketch a graph that shows the relationship between the variables defined.A hot air balloon flew from Seattle, WA to Olympia, WA. Let a be the altitude (in feet) of the hot air balloon t minutes after take off.
What will be an ideal response?
Solve the problem.A man borrowed $3000 at 10% interest compounded annually. If he paid off the loan in full at the end of 5 years, how much did he pay?
A. $1831.53 B. $4500.00 C. $4831.53 D. $3300.00
Convert the polar equation to a rectangular equation.r = 
A. 17x2 + 16y2 - 8x - 16 = 0 B. 16x2 + 16y2 + 8x - 16 = 0 C. 16x2 + 15y2 + 8y - 16 = 0 D. 15x2 + 16y2 + 8x - 16 = 0