Use arrow notation to write a rule for finding the coordinates of a point P(x, y) after a rotation of 270° about the origin.
a {x, y) - P'(x2y)
c. P(x, y) → P' *, -»)
Px, y) P'(x,-»)
d. P(x, y) + PU, “x)
I

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 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! )