Answer: 
<u>Step-by-step explanation:</u>
There are 61 boys --> 38 girls
A) 19 chose football: 5 are girls --> 14 are boys
B) 38 girls: 28 chose running, 5 chose football --> 5 girls chose tennis
C) 31 students chose tennis: 5 are girls --> 26 are boys.
D) 61 boys: 14 chose football, 26 chose tennis --> 21 boys chose running.

Total running = 21 boys + 28 girls = 49
Total students = 99

Answer:
1
Step-by-step explanation:
If we have 2 points we can find the slope
(0,-7) and (6,-1) are two points on the line
Slope is given by
m=(y2-y1)/(x2-x1)
=(-1--7)/(6-0)
= (-1+7)/(6-0)
=6/6
=1
N! = n*(n-1)* (n-2)* ...... right down to 1
For example 5! = 5*4*3*2*1
Answer:
13 30/40 Converted
1 15/40
8/40
subtract all the numbers
12 15/40
12 7/40
12 and 7/10 years old
Hope this helps
Step-by-step explanation:
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Not because a vertical line only touches one dot welcome for the help