It takes 20 minutes for 5 people to paint 5 walls. How many minutes does it take 9 people to paint 9 walls?

Describe how to decide if 94 is a prime munber or composite number

Grace is standing 14 feet from a lighthouse and Kelly is standing 12 feet from Grace. The angle that Grace looks up to see the top of the lighthouse is 45°. The angle that Kelly looks up to see the top of the lighthouse is y°.

Laura's gross annual salary is $44,184. What is the maximum amount of rent she can afford to pay? A. $515 B. $760 C. $940 D. $1031

Carrie spent $1 for every $10 she earned. How much did she earn if she spent $7?

In expression 8x, what is 8 to x

A stories giving a $10 coupon to every 7th person that enters the store and a $25 coupon to every 18th person to enter the store. Which person will be the first to get both coupons

in geometry, two lines are parallel if they are in the same plane and never intersect. Take the mathematical concept of parallel lines and apply it to non-mathematical situations or objects.

When deciding to model a situation with 3D figures, what are the most important things to remember?

Find g[h (x) ] and h[g (x) ] 2. g (x) = -3x h (x) = 4x - 1

1. In what country did the government debate the merit of teaching students quadratics? 2. What modern technology would not be possible without quadratics? (hint: I have one at my house.) 3. What great ideas did the Babylonians come up with? 4.