In 2011, the average office space per worker was 165 square feet, down 21.9% from 2009. what was the average office space per worker in 2009. what was the average office space per worker in 2009?

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.