Solve the problem.Roberto invested some money at 8%, and then invested $2000 more than twice this amount at 10%. His total annual income from the two investments was $3000. How much did he invest at 10%?
A. $2200
B. $6000
C. $20,000
D. $22,000
Answer: D
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Use the laws of exponents to simplify. Write the answer with positive exponents.(b2)3/2
A. b1/2 B. b5/2 C. b3 D. b3/4
Provide an appropriate response.Find the complement of an angle whose measure is 67°45'27".
A. 112° 15' 33" B. 22° 14' 33" C. 23° 14' 33" D. 112° 14' 33"
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.What-A-Pane Inc. sells windows for $106.81 each after a markup of $34.69. Find (a) the cost of a window, (b) the markup as a percent of cost, and (c) the markup as a percent of selling price.
A. (a) $72.12 (b) 32.5% (c) 48.1% B. (a) $72.12 (b) 48.1% (c) 32.5% C. (a) $141.50 (b) 24.5% (c) 75.5% D. (a) $141.50 (b) 75.5% (c) 48.1%
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2; r = 6, ? = 3.14
A. A = 9.14 B. A = 59.16 C. A = 113.04 D. A = 18.84