Which system of equations below has infinitely many solutions? y = –3x + 4 and y = –3x – 4
y = –3x + 4 and 3y = –9x + 12
y = –3x + 4 and y = Negative one-thirdx + 4
y = –3x + 4 and y = –6x + 8

Prove that 16^4-2^13-4^5 is divisible by 11.

How are algebraic expressions evaluated using substitution?

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your