Answer:
10. It will take 14 minutes for the balloon's elevation to change by -315 feet
11. mm I'm not sure but this answer was on Brainly before and they got 4 1/2 hours
Step-by-step explanation:
Hope this helps sorry I took long lol
10.) 14 minutes and 11.) about 64
Answer: 4x
Step-by-step explanation: Move all terms that don't contain y to the right side and solve. y = 4x
3(x+1)-4x=3(2x+1)-7x = True
(-2.2,-3)