Can you please solve this and give me the answer

-2x+y= 3
3x-2y= 5

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Which of the following represents a function? 50 !

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.