Translate to a system of three equations; then solve.Michael's bank contains only nickels, dimes, and quarters. There are 42 coins in all, valued at $3.75. The number of nickels is 6 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 5
B. 7
C. 30
D. 10
Answer: A
Mathematics
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Write the numeral in base ten.42twelve
A. 92 B. 29 C. 50 D. 70
Mathematics
Calculate the y-coordinates in the table below for the function y = 3x²+7.
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Mathematics
Solve the problem.The temperature of water in a certain lake on a day in October can be determined by using the model 
where x is the number of feet down from the surface of the lake and y is the Celsius temperature of the water at that depth. Based on this model, how deep in the lake is the water 9 degrees? (Round to the nearest foot.)
A. 45 B. 12 C. 67 D. 30
Mathematics
Identify the equation without completing the square.2x2 - 3y2 + 5x + 2y + 3 = 0
A. circle B. ellipse C. parabola D. hyperbola
Mathematics