canden buys 3.9 pounds of grapes that cost 1.80 per pound . Which expression can be used to find the total cost of the grapes

1/3(x-10)=-4 solve for x with steps

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

Rewrite so the subject can be y in the formula d=m-y/y+n