Kim purchased a bottle of perfume for $1.50 per .80 ounce. What is the unit cost of the perfume?

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?