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: $99
B. Estimate: $110; exact: $113
C. Estimate: $100; exact: $113
D. Estimate: $110; exact: $115
Answer: B
Mathematics
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Use Gauss's Divergence Theorem to calculate 
.F(x, y, z) = 4x3i + 4y3j + 4z3k; S: the thick sphere 25 ? x2 + y2 + z2 ? 36
A. 
?
B. 1092?
C. 
?
D. 223,248?
Mathematics
Find the real solutions, if any, of the equation. Use the quadratic formula.5x2 + 20x - 25 = 0
A. 
B. 
C. 
D. 
Mathematics
Fill in the blank with one of the words or phrases listed below. 
is a measure of the amount of substance in an object. This measure does not change.
A. Mass B. Weight C. Volume D. Area
Mathematics
Find the LCD and multiply each term by the LCD. Then solve.1 + 
= 
A. x = -9, x = 8
B. x = 9, x = 8
C. x = - 
, x = 
D. x = 9, x = -8
Mathematics