A movie theater is arranged with 7 seats in the front row, 12 seats in the middle row, and 11

seats in the back row. People enter the movie

theater and randomly sits in different spots.

What is the probability that the first person who

enters the theater will be in the middle row?

correct answer:

b.(19,-2)

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.

25/6

step-by-step explanation:

you multiply 4 by the denominator (4*6=24) and add it to the numerator which makes it 25/6.