The distance traveled by a car at a constant rate is proportional to the time spent driving. in the equation d = 45t, d represents the distance (in miles) and t represents the time (in hours).
a. what is the constant of proportionality? miles per hour
b. how far will a car travel in 3 hours? miles

What is the product of the radical expression. (7-2square root) (8+2 square root)

Is the figure congruent? yes or no?

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?