If the unit selling price 2.50 and the unit cost 1.00 what action is needed to maintain thr gross margin percentage when unit cost increase 0.25

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

What is the slope of the line shown below?

The host of a game show is holding a bag with chips to see what prizes the contestants will play for. five (5) of the chips say “new car” ten (10) of the chips say “new tv” three (3) of the chips say “trip to france” contestant named “patty” reaches into the bag. a. what is the probability of choosing a tv chip? b. what is the probability of choosing a car chip next without replacing the 1st chip? c. are these dependent or independent events?