NEED ASAP GIVE YOU LOTS OF POINTS

Rationalize the denominator- 12x/√x-10

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

Brent paid for 6 avocados with a $20.00 bill. he received $10.40 in change. construct and solve an equation can be used to find the price , of each avocados