The expression 4•3t gives the number of ducks living in anoops pond t years after he built it

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

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