The sum of two numbers is 42 and the difference is 20. what are the numbers?

larger number:
smaller number:

(can someone , i think the big # is 22 and the small one is 20 but im pretty sure thats wrong)

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.