Adrian makes a large pan of brownies. He cuts them into 5 even columns and 4 even rows. How many brownies does he have?

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

What kind of bond pays interest which is exempt from tax?

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation