A) 9/7
b) 9/-7
c) 7/9
d) -9/7
e) -9/-7​

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.