4 significant figures.
we can start counting the numbers after all the zeros in front. the zeros in front doesn't count in. but the zeros after the first number that is 1 or larger counts.
therefore we only need to look at 3010
Answer:
for the 1st year she earned 160 so for 3 years she will earn $480
43 divided by 50 equals to 0.86
Here we go ~
In the above question, it is given that :
A.) Find f(2) :
or
B.) Find 
:
so, we can write it as :
Now, put x = , and y = x and we will get our required inverse function ~
C.) Find 
:
I can help you with #20. For example, lets say 3/5, this fraction would be made up of 5 parts and 3 are covered, which doesn't make it full, if it was 5/5 it would be full. When you do something with a reciprocal you turn it over, so 3/5 would be turned over to 5/3, thus making it a whole number
