Rosa works in an office building with many floors. from her office, she goes down 2 floors for a meeting. then, she goes up 8 floors to have lunch. after lunch, she goes down 13 floors to the first floor. what floor is rosa's office on?

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.