Determine the solution to the system of equations 2x-5=7 -3y+2= -4

2x=7+5

2x=12

2x divided by 2=12 divided by 2

Gives me x=6

-3y+2= -4

-3y=-4-2

-3y=-6

y=2

answer: i believe its b. if you sound out the sentences that sounds wrong.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.