Cor A rectangle has a length of 4 inches and a width of 1 inches whose sides
are changing. The length is increasing by 9 in/sec and the width is
shrinking at 8 in/sec. What is the rate of change of the perimeter?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

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?

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)