Alice's walking rate is 2.5 meters per second. Her younger brother, Mack, walks 1 meter per second. Because Alice's rate is faster than Mack's, Alice gives Mack a 45 meter head start in a 100-meter race. What happens in the race?

Griffin ordered a pair of sneakers online. he had a $22 credit that he applied toward the purchase, and then he used a credit card to pay for the rest of the cost. if the shoes cost $58, how much did griffin charge to his credit card when he bought the sneakers?