Ineed asap like oof

go in order

Which expression converts 45 degree to radians

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?