Answer:

Step-by-step explanation:
Given


Required

This is calculated as the number of women divided by the population of the class
i.e.

So, we have:


Answer:
increase
Step-by-step explanation:
the number got bigger
R is 18 and x is 12 is the answer of your
question
155/(2 1/2)=62
Sam drives at 62 m/h
62*4=248
Sam would drive 248 miles in 4 hours.
Hope this helps :)