What is the median of the numbers 1,3,3,4,4,4,5,5,6,7,7,7
Please help quick giving 20 points

What is the number 321,000,000 in scientific notation? also what is the number? ?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?