Solve the problem.Walt made an extra $7000 last year from a part-time job. He invested part of the money at 7% and the rest at 10%. He made a total of $580 in interest. How much was invested at 10%?
A. $4000
B. $7000
C. $3500
D. $3000
Answer: D
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Use the compound interest formulas A = P
nt and 
to solve.Suppose that you have $3,000 to invest. Which investment yields the greater return over 5 years: 7.5% compounded continuously or 7.6% compounded semiannually?
A. $3,000 invested at 7.5% compounded continuously over 5 years yields the greater return. B. Both investment plans yield the same return. C. $3,000 invested at 7.6% compounded semiannually over 5 years yields the greater return.
Add or subtract as indicated.-5.895 + 6.015
A. -11.81 B. -11.91 C. 0.12 D. 35.458
Use the curve-sketching guideline, to sketch the graph of the function.
?
?
A. ?
B. ?
C. ?
Provide an appropriate response.The original amount, in a subtraction problem, is called the:
A. borrowing B. minuend C. difference D. subtrahend