Find the area of the composite shape. 4 m
3 m
4 m
5 m
12 m
5 m
Can someone help me please

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

If sin(x) = 0 and cos(x) = 1, what is tan(x)?