Amotorboat takes 3 hours to travel 108 going upstream. the return trip takes 2 hours going downstream. what is the rate of the boat in still water and what is the rate of the current?

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?

The length of a rectangular plot of land is given by the expression 6x^3y^4. the width of the plot is given by the expression 5x^5y^4z. find an expression to represent the area of the rectangular plot.

How do you find percent change? ? i will give brainliest for the bestme i don’t understand