Select all the expressions that are equivalent to the polynomial below. (-19x2 − 4x - 7) + (4x2 + 25x − 5)
(-7x2 − 21x + 13) − (8x2 + 8x + 25)
-2(7x + 1) − 5(3x2 + 3x + 2)
(-17x2 + 2x − 3) + (2x2 − 31x − 9)
(5x2 − 10x + 8) − (10x2 + 19x + 20)
-2(4x − 15) − 3(5x2 + 7x + 6)

Which line is parallel to the line that passes through the points (2, –5) and (–4, 1) a. y=-x+5 b. y=-2/3x+3 c. y=2/3x-2 d. y=x+5

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.