30 pts!

Simplify each expression. Give your answer using positive exponents.

1: 8^-2

2: 1/3^-3

3: 6^-12 * 6^8 * 6^0

900x300+2.4000/3-2001

The following are the ages (years) of 5 people in a room: 15, 17, 22, 14, 19 A person enters the room. The mean age of the 6 people is now 19. What is the age of the person who entered the room?

What is 4x (3.4+2) - (56:7) =

What are Segments of equal length called

What is the prime factorization of 400 using a factor tree?

4b - 5 = - t, solve for b

morgans gross income was 1200. How much Federal Income Tax will she pay if Federal Income Tax 12%. Round to the nearest hundredth

The difference 25 (d-10) - 23 (d+6) 25 (d-10) - 23 (d+6) is

Josh poured 38 gallons of water into 6 buckets he poured the same amount into each bucket how much water did josh pour into each bucket.

7.) Solve. Use the calculator set for degrees. Round answers to 4 decimal places. Find sin 45° using 15° and 30° a.) 0.9659 b.) 0.8660 c.) 0.4830 d.) 0.2241 e.) 0.7071