A train has one engine and 6 train cars. Find the tot oak number of ways an engineer can arrange the train. (The engine must be first)

go and ask your mom to you

the answer is b

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.