2/3x - 1/2y = 3
1/2x + y = 5

which of the following systems is equivalent to the given system?

2x - y = 18 and x + 2y = 10
4x - 3y = 18 and x + 2y = 10
2x - 3y = 3 and x + 2y = 5

6n^2-7n-75=0 solve by quadratic formula

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.