Simplify the following functional expressions using Boolean algebra and its identities. List the identity used at each step. (9 pts) a) (ab + c + df)ef b) x + xy c) (xy’ + x’z)(wx’ + yz’)

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2