Problem A: Use the following equations to find x and y (show all of your work) 2x 3y = -4 3x + 12y = 22 Problem B: Use the following equations to find x and y (show all of your work) 2x + 5y -12 -3x 1 12y 4 Problem C: Use appropriate multiple and submultiple prefixes to express the following quantities. The numerical part of your answer should be between I and 1000: 43,250 Volts (V) ii. 0.0000125 Amps (A) 111. 6.238 x 10 meters (m) iv. 0.00265 x 10" watts (W) V. 322 x 10' Ohms (2) Problem D: Use scientific notation to express your answer after converting the following The numerical part of your answer should be between I and 1900: Convert 6 ft 3 in to um (Tip: convert from inches to cm, first) 11. Convert 323.2 nm to kilometers 111. Convert 10.793 x 10" kilometers per hour to meters per second