Solve the problem.The line graph shows the cost of inflation. What cost $10,000 in 1980 would cost the amount shown by the graph in subsequent years. 
Below are two mathematical models for the data shown in the graph. In each formula, C represents the cost x years after 1985 of what cost $10,000 in 1980. Model 1: C = 798x + 22,521 Model 2: C = -x2 + 820x + 23,017Which model is a better description for the cost in 2005 of what cost $10,000 in 1980?
A. Model 1
B. Model 2
Answer: A
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Solve the problem.Find the measure of an angle whose supplement is 6 times the measure of its complement.
A. 30° B. 15° C. 36° D. 72°
157.08 cubic millimeters of material was removed by drilling the blind hole shown in the illustration. Find the depth of the hole.
(The volume of a cylinder is given by 
)
?
?
?
A. 10 millimeters
B. 5 millimeters
C. 1 millimeters
D. 8 millimeters
E. 16 millimeters
Solve. Write the fraction in simplest form.Marty jogged 
of a mile from home and then rested. Then he continued jogging another 
of a mile until he discovered his watch had fallen off. He walked back along the same path for 
of a mile until he found his watch. Find how far he was from his starting point.
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Simplify the decimal expression.61.6671 - 19.6684
A. 42.9987 B. 41.9887 C. 41.8987 D. 41.9987