Amount of fuel: a car uses 45 gallons of gasoline for a trip of 520 miles .how much gallons would be used on a trip of 420

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.