The cool sub shop is having its grand opening. the owner buys three 1/4-page ads, four 1/8-page ads, and ten 1/16-page ads. what is the total amount of ad space that the owner buys?

The triangles are similar. what is the value of x? x=

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

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