19. A circle in the sy-plane has center (5,7) and radius 2. Which of the following is an equation of the circle?
A. (x - 5)2 + (y - 7)2 = 4
B. (x + 5)+ (y + 7)2 = 4
C. (x - 5)2 + (y - 7) = 2
D. (x + 5)+ (y + 7) = 2

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?