The point (7, 8) is the solution of which of the following systems of equations? 1. 8x - y = 48
9x + 10y = 142

2. 9x - y = 55
8x + 10y = 140

3. x-6y=-41
8x + 9y = 127

4. x-7y=-49
10x + 9y = 142

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Acircus act has 3 times as many elephants as acrobats. jorge noticed that all together there were 56 legs in the circus ring. how many elephants were in the show?