At a certain middle school, there are 26 students per teacher in every homeroom. is the total number of students proportional to the number of teachers?

Yes

Step-by-step explanation:

Let the number of students be and number of teachers be

As there are 26 students per teacher in every homeroom in the middle school, this can be written in expression as:

now, this can be converted into proportionality expression considering 26 as constant of proportionality and will be written as:

hence we can say that total number of students in middle school is proportional to total number of teachers

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm