If you want more information about a tool or way of doing things and it isn't explained in the course, where should you look for ?

& hurry! i need this done by 3: 00 pm! changes in artists' art brought about by the inventions of automobiles and trains shows that society influences what? brainliest whoever gets it correct!

What are these signs and what do they mean ?

Can someone me ( i’ll mark brainliest )