What is 221,000,000,000,000,000,000 expressed in scientific notation? a. 2.21 * 1021 b. 2.21E20 c. 2.21E21 d. 2.21E-20 e. 2.21 * 10-21 f. 2.21 * 10-20 g. 2.21 * 1020 h. 2.21E-21

At Best Buy they have a stereo system that sells for $2200 and is on sale for 15% and sales tax is 7%. What is the final cost? (Note, sales tax will be calculated on the sale price.)

Whats the answer to 80 miles in 2 hours unit rate?

How do you write 8.825 in words?

How many 3/4 are in 12 2/4

The average adult human has approximately 2.5 x 10 ^ 13 red blood cells + 7 x 10 ^ 9 white blood cells about how many times as great is the number of red blood cells than the number of white blood cells

What does this equal 32p = 160

Which fraction (in simplest form) is equivalent to 0.49? A. 12/25 B. 49/100 C. 7/50 D. 10/49

The sun is 150000000 kilometer from earth. Write this number in scientific notation

5.45 x 1.5=8.175 Estimate: 4.3 x 8.3 Estimate: 23.4 x 8.4 Estimate: 98.45 / 0.56 Estimate: 47.56 / 6 Estimate: 23.56 / 0.3 Estimate: 567.34 / 6.89 Estimate: 72.4 x 7.98 Estimate: 83.43 / 0.23 Estimate: 345.53 / 7.45 Estimate:

If 5.9% of female population was diagnosed with diabetes what percentage was not diagnosed