Advance sale tickets a to show cost $20 each. while tickets at the door cost $25 each. of $2,125 was collected on the sale of 100 tickets, how many tickets were sold at the door?

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?