A car ride in a small town costs a base fee of $10.00 per person, plus $0.50 for every mile. So the cost of a cab ride for one person can be determined by the equation y = 0,50x + 10.00, where y is the fare and x is the distance of the ride in miles,
Step 2 of 2: Use the graph to estimate to the nearest quarter of a dollar ($0.25) the cost of a cab ride for one person that is 4 miles.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Can someone show me step by step how to do this?

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?