I need help on this! I have to get this done today because I'll be leaving to go to Las Vegas in two days! (March 3rd) I ask if you please show me the steps. Due to this I struggle with math, so I have to come on here and take some classes to learn! I thank you for your help!

Acylinder has volume 45π and radius 3. what is it’s height?

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.