Find the price that will maximize profit for the demand and cost functions, where p is the price, x is the number of units, and C is the cost. Demand Function Cost Function
p = 65 − 0.1 sqrt{x} C = 35x + 600

Sorry guys but as you have a small brain

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

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.