4. Express the ratios as a fraction without reducing. a. 6: 13
b.7:40
C. 45 : 36
d. 37:43

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

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

[15 points, algebra 2]simplify the complex fraction and find the restrictions.