Need with replacing each addend with 0,1/2, or 1 . how do i perform sons homework

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?