Ellason wants to solve the following system using the elimination method:

5x + 2y = 30
x + y = 8

what number should the equation x + y = 8 be multiplied by to eliminate y?
2
−2
5
−5

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet

Jon’s weight loss for each week of the month is 5 lbs., 2.5 lbs., and 2.5 lbs. he gained 3.5 lbs. the last week. if jon originally weighed 198 lbs., how much does he weigh now?