How many sign changes are in the polynomial f(x) = 3x3 + 7x2 + 9x - 1

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Suppose a pendulum is l meters long. the time,t,in seconds that it tales to swing back and forth once is given by t=2.01

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?