Im so sorry I don't know how to do B but I do know a and c.....
A) 1.44
C) 3
Answer:-1/6
Step-by-step explanation:
-1/2 + (3/4times4/9)
-1/2 + (3/4 x 4/9)
-1/2 + (3x4)/(4x9)
-1/2 + 12/36
(18 x -1 + 1 x 12)/36
(-18+12)/36
-6/36=-1/6
To find an equation to describe the relationship between t and c you:
1. Find what is the dependent variable and the independent variable
In this case the total cost of the tickets depend of the number of tickets. Then:
Dependent variable is C
Independent variable is T
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You can see in the table that the difference between the cost of the tickects is 165 for every 3 tickets. you find this by substracting the data in every column, as follow:
Then, the equation will be a lineal equation with a slope of:

You use a point of the lineal relationship to find the equation:
(2,110) t1=2 c1= 110
You use the next formula:

You replace the coordinates of the point and find the value of b:


The equation is:
B. Square root of 9 (which is 3) because it is the only one that is a number that terminates. All others are non repeating.