4 x (n + 20), pretty simple. :)
Answer:72 are boys.
Step-by-step explanation:
40%of 180 is 72.
9.3342meters because you convert 2350mm into m which is 2.35m, + and also convert 3.42cm to m which is 0.0342 then + 1.45m +11/2m= 9.3342m
10 × 30 = 300
(20 characters thing)
All you have to do here is some simplifying.
6/12 = what
6 divided by 12 = 1/2
1/2 = 2/4
There! We have our missing value
6/12 = 2/4
Answer: c = 4