HELP ME Bananas cost $0.59 per pound. Write an equation that could be used to find the total cost, y, of x pounds.

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

How do i simply this radical expression?

Find the average rate of change for the given function drom x=1 to x=2