Liang is ordering new tires for his car. The tires he has have a circumference of 28π inches and a wheel rim with a circumference of 18π inches. How much larger is the radius of the tire than the radius of the wheel?

10 inches
5 inches
20 inches

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

70 points ! pls 2. given the following two sets of data what is the union of the two sets and what is the intersection of the two sets. set a = {1, 2, 3, 4, 5, 6, 7, 8, 9} set b = {2, 4, 6, 8, 10, 12, 14} 3. given a regular deck of cards. describe a way of pulling cards that would create a dependent event and then one that would create an independent event. 4. what is the probability of drawing a red card and then drawing a spade without replacing the card that was drawn first?