An ellipse that has a major axis that is 14 units long. The foci of the ellipse are located at (0,0) and (0,-6) . Which is a correct value for one of the variables shown in the equation?
a. k=3
b. b=3
c. a=14
d. h=3

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?