Solve the problem.A truck rental company rents a moving truck one day by charging $39 plus $0.07 per mile. Write a linear equation that relates the cost C, in dollars, of renting the truck to the number x of miles driven. What is the cost of renting the truck if the truck is driven 200 miles?
A. C(x) = 0.07x + 39; $40.40
B. C(x) = 0.07x + 39; $53.00
C. C(x) = 0.07x - 39; -$25.00
D. C(x) = 39x + 0.07; $7800.07
Answer: B
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Solve the problem. Use the given table to find monthly payments. 
Harold took out a 4-year amortized loan for $19,000 at 10% to pay his tuition at a technical institute. After 1 year, he refinanced the unpaid balance of $14,933 at a 6% interest rate. Find the monthly payment on the original loan; the monthly payment on the new loan; and total amount saved on interest by refinancing. All interest rates are annual interest rates.
A. $481.84; $454.26; $6774.96 B. $481.84; $481.89; $992.88 C. $481.84; $481.89; $6774.96 D. $481.84; $454.26; $992.88
Find the unit tangent vector of the given curve.r(t) = (8 sin3 7t)i + (8 cos3 7t)j
A. T(t) = (sin 7t)i - (cos 7t)j B. T(t) = (8 cos 7t)i - (8 sin 7t)j C. T(t) = (8 sin 7t)i - (8 cos 7t)j D. T(t) = (168 sin 7t)i -(168 cos 7t)j
Find an estimate for the product by rounding the factors to their greatest place value. 597 × 168
A. 800 B. 120,000 C. 100,300 D. 100,296
Evaluate the integral.
A. 75y
B. 35
C. 
y
D. 5x(4x - 5)