Use a tree to test whether the following argument is valid or invalid. if it is invalid, read off a counterexample. 1. (aab) v-( c d ) 2. a + (bvd) 3. -d+-(avb) : : a

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36