How many different ways can a band teacher select the lead and co lead trumpet player from a group of 12 trumpet players

Pythagorean Theorem In the rectangular pyramid below, l = 32 inches, w = 24 inches, and h = 30 inches. What is the length of s?

In a lake, one-fourth of the water is replaced by clean water every year. Sixteen thousand cubic meters of soluble toxic chemical spill takes place in the lake. How much toxic will be left after 12 years? When will 80% of the toxin be eliminated?

F m∠A = 110 degrees and m∠B = 35 degrees, find m∠1.

David made fruit punch for his party but accidentally tripped and spilled 5/12 of the punch. How much of the punch was left? Explain.

How many times larger than 0.005 is 0.625

Add 5 gal 2qt + 4gal 3qt

Revenue in 2000 for a bakery chain totaled $10 billion from 5,562 shops nationwide. During the next 10 years, the bakery had to close down a few shops, and the total revenue in 2010 from 5,152 shops was $6.7 billion.

A bag contains 2 red marbles 7 blue marbles 5 green marbles. If two marbles are drawn out of the bag, what is the exact probability that both marbles will be blue

6x4.3. Using distributive property. make sure to explain.

Round 12,000 thousand feet to the nearest thousand