Simplify.9 - 
+ 72
A. 58
B. 56
C. 60
D. 54
Answer: C
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Solve the problem.How long will it take for $1500 to grow to $1600 at an interest rate of 7.9% if the interest is compounded continuously? Round the number of years to the nearest hundredth.
A. 0.82 yr B. 7.9 yr C. 0.08 yr D. 81.69 yr
Use a proportion to solve the problem.Joan can mow a 6-acre field in 4 hours. How long would it take her to mow a 3.6-acre field?
A. 4.4 hours B. 0.6 hour C. 2.4 hour(s) D. 5.4 hours
Subtract.0 - 3
A. 
B. 3
C. 2
D. 
Solve the problem.An open-top box is to be made by cutting small identical squares from each corner of a 
sheet of tin and bending up the sides. If each corner square is x inches on a side, the volume of the box (in in.3) is given by: V(x) = 196x - 56x2 + 4x3By sketching the graph of V(x), estimate the value of x that maximizes the volume of the box.
A. 7 in. B. 1.8 in. C. 3.5 in. D. 2.3 in.