The formula to convert Celsius to Fahrenheit is F=9/5 C +32. Convert 87°F to Celsius. Round to the nearest degree.
A. 16°C
B. 55°C
C. 99°C
D. 31°C
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Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

The anwser cause i do not understand just plez