Put twenty-one thousand, seventy in standard form

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

5stdents eat 5 eggs in 5 minutes. How many students eat 30 eggs in 15 minutes?

Air containing 0.04% carbon dioxide is pumped into a room whose volume is 6000 ft3. The air is pumped in at a rate of 2000 ft3/min, and the circulated air is then pumped out at the same rate. If there is an initial concentration of 0.

What is 9 5/6 plus 1 7/10?

What's the greatest common number between 5,11

18. If z = (5) (11) (28) (38), what is the greatest prime factor of z? A. 5 B. 7 C. 11 D. 13 E. 19

If the average of 7 consecutive numbers is 43 what is the largest number

Which would be a good estimate for the tax on $97.95 if the taxis 9.5%

Expand the following expression. 5/4 (2x + 3/4) a 5/2 x + 15/4 b 5/4 x + 15/6 c 5/2x + 15/16 d 2 x + 5/16

In a business class, 15% of the students have never taken a statistics class, 40% have taken only one semester of statistics, and the rest have taken two or more semesters of statistics.