Lena currently has a balance of -$10.48 in his checking account. Her bank requires her to maintain a minimum balance of $20. How much does Lena need to deposit into her checking account to reach the minimum balance?

Acone is placed inside a cylinder. the cone has half the radius of the cylinder, but the height of each figure is the same. the cone is tilted at an angle so its peak touches the edge of the cylinder’s base. what is the volume of the space remaining in the cylinder after the cone is placed inside it?