Solve the problem.Matthew has $4800 invested in the stock market. This amounts to 25% of his total savings. How much has Matthew saved?
A. $19,300
B. $19,210
C. $19,200
D. $192,000
Answer: C
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The distance 
, in miles, I can drive without stopping for gas depends on the amount 
, in gallons, of fuel in the tank. The relationship is
?
.
?
If I add 5 gallons of fuel to my tank, how much farther can I drive?
A. 135.00 miles
B. 135.79 miles
C. 27.43 miles
D. 27.00 miles
Write the equation of the circle with the given center and radius.Center (0, 9), radius 
A. (x + 9)2 + y2 = 225 B. x2 + (y - 9)2 = 15 C. x2 + (y + 9)2 = 15 D. (x - 9)2 + y2 = 225
Solve the problem.The polynomial function I(t) = -0.1t2 + 1.8t represents the yearly income (or loss) from a real estate investment, where t is time in years. After how many years does income begin to decline? Round to the nearest tenth of a year, if necessary.
A. 18 years B. 9 years C. 8 years D. 12 years
Graph the function.f(x) = 
A. 
B. 
C. 
D. 