Select all the correct answers. What is 221,000,000,000,000,000,000 expressed in scientific notation?

There are 57 ounces of cereal in 5 boxes. At this rate, how many ounces of cereal are in 8 boxes?

Denise put $95 into a CD that pays 5.2% interest compounded monthly. According to the rule of 72, approximately how long will it take for her money to double?

The interior angles of a triangle have measures 100°, (4y+25) °, and (3y+20) °. What is the value of y?

2. Find the difference: (3p2 - 2p + 3) - (p3 - 7p + 7) = A Find the difference:

Anais bought 2 1/2 yards of ribbon. She had 1 feet 6 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains?

What is the Hcf of 10 and 15

The name of the triangle whose angles are all obtuse.

Kendall has 37 inches of yarn to create an outline of the Big Dipper for her science project. Which equation could be used to find out how many inches of yarn will be left when she has finished the project?

6 divided by 3/4 I need to show work

Kayla paints a bookcase she uses 1 5/6 cups of paint on the outside of the bookcase and 3/8 cup of paint on the inside. How many cups of paint did Jayla use all together