Solve the problem.Matt bought 3 pounds of oranges and 2 pounds of apples and paid 
before tax. Andy bought 4 pounds of oranges and 3 pounds of apples and paid 
before tax. Use this information to set up a matrix equation of the form AX = B , which can be solved to determine the price per pound for oranges and apples. Solve this matrix equation to find the price per pound of apples.Use the fact that for 
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A. $0.85 per pound
B. $0.81 per pound
C. $0.78 per pound
D. $0.72 per pound
Answer: B
Mathematics
src="https://sciemce.com/media/4/ppg__fdgfd0509192127__f1q71g4.jpg" alt="" style="vertical-align: -15.0px;" />
A. $0.85 per pound
B. $0.81 per pound
C. $0.78 per pound
D. $0.72 per pound
Answer: B
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Find the exact value of the indicated trigonometric function of ?, if ? is an angle in standard position whose terminal side contains the given point.(6, 8); Find csc ?.
A. 
B. 
C. 
D. 
Plot the point in a polar coordinate system.
A. 
B. 
C. 
D. 
Solve the problem.The decibel level D of a sound is related to its intensity I by 
. If Io is 10-12, then what is the intensity of a noise measured at 63 decibels? Express your answer in scientific notation, rounding to three significant digits, if necessary.
A. 6.3 × 10-10 watt/m2 B. 5.45 × 1014 watt/m2 C. 2 × 10-6 watt/m2 D. 2 × 10-5 watt/m2
Solve.6r + 3 = 45
A. 40 B. 36 C. 7 D. 4