Pls help! Angle DEF is a straight angle. What are the measurements of angle DEC and angle CEF? Show your work.

In what organelle does photosynthesis take place?

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?

Find the distance between (0,5) & (-4,2)