Find the distance between the river.

3(10x-y)-5(x-y^2) need this solved asap

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

This is so hard and it’s for a test