Find the measure of x and y (3x-3) (4y+4) 60 degrees

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.