I got 6 is this correct? if not please explain

Through: (-3,-3) parallel to y= 7/3x+3

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers