I told you i would put more free points up ;)

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

At school 460 of the students walk to school the number of students who take public transit is 20% of the number of students who walk. how many students take public transit