3x+2y-5z=-1
4x-3y+2z=-13
2x-5y+4z=-9

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%

Ihonestly have no clue if it's each or none.

What is the y-intercept of the line with the equation 3x + 4y = 12?