Which angle is this??

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq