First you have to add up $9.00 + $9.00 because it's 6 for $9.00 which is $18 and now you have 12 cantaloupes but since you need 15 you now divide 6 by 9.00 which gives you $1.50 which is the origanl price the cantaloupes were before and now you find the price of 3 cantaloupes 3x$1.50 = $4.50 now you add $18 + 4.50 = $22.50 :)
Ok so you have 4, x^6 / 2, x^4. Now divide the coefficient so 4/2=2. So 2 x^6/x^4, now subtract the numerator by the denominator so x^6-x^4=x^2 so now you have 2x^2
