Help please Which equation represents the general form a circle with a center at (-2, -3) and a diameter of 8 units? a. x2 + y2 + 4x + 6y - 51 = 0
b. x2 + y2 - 4x - y -51 = 0
c. x2 + y2 + 4x + 6y – 3 = 0
d. x2 + y2 - 4x - 6y - 3 = 0

The price of a particular stock is represented by the linear equation , where x represents the number of weeks the stock has been owned and y represents the price of the stock, in dollars. if this relationship continues, what is the price of the stock after it has been owned for 12 weeks? $92.55 $94.37 $100.52 $114.39

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup