Which set of numbers is the most reasonable to describe the number of desks in a classroom? A. integers
B. whole numbers
C. irrational numbers
D. rational numbers

B. whole numbers

Step-by-step explanation:

whole numbers are numbers such as 1, 2, 3, 4, etc. This is the most reasonable choice, so the answer is whole numbers.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.