One cubic feet of sand wounds 100 lbs. a square sandbox with 5 foot sides had half of a foot of sand in it. how many lbs of sand is in the sandbox?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?