Solve the problem. First use front end rounding. Then find the exact answer.The table shows the approximate price for several items that Tracy would like to purchase as gifts for her friends. How much will she need to spend in order to purchase a jacket, a coffee mug, a tee shirt, and basket of assorted nuts and candy?
A. Estimate: $110; exact: $101
B. Estimate: $100; exact: $115
C. Estimate: $110; exact: $117
D. Estimate: $110; exact: $115
Answer: D
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Let x represent the unknown, and write an equation for the sentence. Do not solve. When 4 times a number is subtracted from 7 times the number, the result is 27.
A. 7x - 4x = 27 B. 4x(7 - x) = 27 C. 4x + 9x = 27 D. 4(x - 7) = 27x
Solve.The diagonal of a Persian rug measures 26 ft. The area of the rug is 240 ft2. Find the length and the width of the rug.
A. Length: 120 ft; width: 120 ft B. Length: 24 ft; width: 10 ft C. Length: 20 ft; width: 12 ft D. Length: 16 ft; width: 15 ft
The graph of the function f is shown below. Match the function g with the correct graph.g(x) = - f(-x) + 4
A. 
B. 
C. 
D. 
Solve the quadratic equation using the zero product property.7x(8x - 5) = 0
A. 
B. 
C. 
D. 