How do you find the eqivalent mixed number for 50/7?

Which of the following are parts of a sphere

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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?