I NEED HELP PLZ! Worth 20 POINTS!

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

Ten times the square of a non-zero number is eqaul to ninety times the number

By what fraction name for 1 must 2/3 be multiplied to form a fraction with a denominator of 15