Fast pls A submarine is diving to a total depth of 45 feet. It descends 15% of the total depth in 1 minute.

How deep will the submarine be after 4 minutes?
−6.75 feet
−27 feet
−13.5 feet
−20.25 feet

An astronaut drops a rock into a crater on the moon. the distance, d(t), in meters, the rock travels after t seconds can be modeled by the function d(t)0.82. what is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Through non-collinear points there is exactly one plane.