The sum of all the measurements is just the average times the number.


So if the average of all 92 is 7 the sum of those is

The average of the last two is 7.2 so their sum is

That means the sum of the first 90 is

so the average of the first 90 is

cm
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Answer:
It is an expression
Step-by-step explanation:
An equation needs to have an equal sign in it and 18-35 doesn't have an equal sign
Hope this helps!! :)
Answer:
200
Step-by-step explanation:
6,000 divided by 30 is 200
F(x)= x+13
F(-2)= -2 +13
= 11
You plug in -2 for the x