Askate shop owner ordered 60 skateboards from the manufacturer . out of the 60 boards that were ordered, 18 were longboard. he wants to know what percent of his order was longboards?

30%

Explanation:

if you put the numbers into a fraction 18/30 and then simplify you'd get 0.3, in school i learns to see decimals and percentages as "DP"  you would take the decimal place and move it twice to behind the letter "P" this action gives you 30%

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers