A. Directions: Verify if the given ratios is a proportion. Put (1) if it is a proportion and (x) if not on the space provided before the number
1. 3. 20 and 5:45
2.12.7 and 36:21
56
3.
-
72
9
57
4.
18
5.
-
12
27​

D. 50 students

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Step-by-step explanation: First we find the area of the classroom which is worked out below and it is the shape of a rectangle;

Area of a rectangle = Length * Breadth

                               = 60 ft * 40 ft

                               = 2400 ft²

Now to find the number of students that she will allow in the classroom, we have to divide the area of the classroom which is 2400 ft²by the amount of space allocated to each student which will be;

=

= 50

This means she will  allow 50 students into her class.