Solve the problem. Round dollars to the nearest cent and rates to the nearest tenth of a percent.Find the selling price of an item which cost a store $61. The store has a 30% markup.

A. $46.92
B. $18.30
C. $203.34
D. $79.30


Answer: D

Mathematics

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Find the derivative.f(x) = 5 +  - 5 + 4

A. x-1/2 + x-2/3 + x-3/4 + x-4/5
B. x1/2 + x2/3 - x3/4 + x4/5
C. x-1/2 + x-1/3 - x-1/4 + x-1/5
D. x-1/2 + x-2/3 - x-3/4 + x-4/5

Mathematics

Find the derivative of y with respect to x, t, or ?, as appropriate.y =  

A.
B.
C.
D.

Mathematics

Use the quotient rule to simplify the expression. Use positive exponents to write the answer.

A.
B.
C. - 
D.

Mathematics

Two planes take off at the same time from an airport. The first plane is flying at 244 miles per hour on a course of 135.0°. The second plane is flying in the direction 170.0° at 358 miles per hour. Assuming there are no wind currents blowing, how far apart are they after 2 hours? ? Apply the rules regarding the use of significant digits after all computations are complete. ? __________ mi

Fill in the blank(s) with the appropriate word(s).

Mathematics