In a spelling bee, scholarships are awarded to the top three spellers. The first-place speller receives $5,000. The second-place speller receives $3,000. Third place receives $2,000. Twelve students participate in the spelling bee. Complete the sentences below.

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

X2 + y 2 = 36 x + y = 6 solve the system of equations.

What is the total surface area of this square pyramid?