Elsa took out a 2-year loan to buy a car at a 6% simple interest rate. if she has to pay $264 in interest, how much principal did she borrow?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?