Solve the problem.Find out how long it takes a $3300 investment to double if it is invested at 
compounded quarterly. Round to the nearest tenth of a year. Use the formula 
.
A. 10 yr
B. 10.4 yr
C. 9.8 yr
D. 10.2 yr
Answer: A
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?Which of the following does not involve subtraction to solve or model? ?
A. ?The distance between -7 and -11. B. ?X decreased by Y. C. ?-7 + (-9) D. ?A number decreased by 4. E. ?The range of temperatures on any particular day.
The circumference of a circle is 77.9 m. Find its radius. Use the rules for working with measurements.
A. The radius is 4.98 m. B. The radius is 12.4 m. C. The radius is 6.20 m. D. The radius is 24.8 m. E. The radius is 49.6 m.
A rectangular box is to have a square base and a volume of 20 ft3. The material for the base costs src="https://sciemce.com/media/3/ppg__cognero__2.3_Functions_and_Mathematical_Models__media__cc37530d-eff9-4ad0-bad6-1fad79c0850d.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_9e0e8a678654426ca025c0b98" />. Letting x denote the length of one side of the base, find a function in the variable x giving the cost of constructing the box.
?
, the material for the sides costs 
, and the material for the top costs 
What will be an ideal response?
Solve the following equation by finding the exact solution.
?
What will be an ideal response?