Evaluate the expression for the given replacement values.x + y, for x = -4 and y = -7

A. 11
B. 3
C. -3
D. -11


Answer: D

Mathematics

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Solve the problem. Round to the nearest tenth, if necessary.A long-distance runner runs 4 miles directly south and then faces due east and runs another 8 miles. How far is the runner, in a straight line, from his starting point? 

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Solve the equation for c.(7p + 3) = ln (2c) + ln c

A.
B.
C.
D.

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Subtract.-10 - 10

A. -20 B. 20 C. 0 D. -10

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Solve the problem.A department store is having a clearance sale. The price on a television is reduced by 35%. That sale price is then reduced by another 35%. If x is the television's original price, the sale price can be represented by (x - 0.35x) - 0.35(x - 0.35x). With these two reductions, at what percentage of the original price is the television being sold? Use the factored, simplified form of the expression to answer the question.

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