You might need! After reading a book about ancient Egypt, Cassie decided to build a model of a pyramid out of cardboard.
30 cm
25 cm
How much cardboard does Cassie need to make the model, including the bottom?
Plz help me

Ineed with 14, 16, 28 and 36 me. we didn't go over them in class so i don't know what to do.

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )

The graph of f(x) is obtained by reflecting the graph of f(x)=-3|x| over the x-axis. which equation describes f(x)? a) f(x)=3|x| b) f(x)=|x+3| c) f(x)=-3|x| d) f(x) = - |x+3|