Answer:

Step-by-step explanation:
I think this question is a bit hard to explain by typing, so I'll add an image down below.
I used long division for this question, and the final answer is: 
Answer:
32
x
5
−
400
x
4
+
2000
x
3
−
5000
x
2
+
6250
x
−
3125
Step-by-step explanation:
A: 1 over 20; because if you multiply 4 (the number of cards) with 5 (The number of equal sectors), you get the answer of 20.
To find the Area you need to use the formula L x W!! Anyways, You have to multiply the Length x the width. Your Length is 1 3/4 and your width is 1 1/2. So 1 3/4 x 1 1/2 is 2 5/8!!
The percent error is calculated by the formula Absolute Value of (Error - Actual / Actual then times 100).
In this case the Error value was 76, and the Actual was 80.
So, set up the expression
I(76 - 80)/80 x 100I
I-4/80 x 100I
I-400/80I
I-5I
5
The percent error was 5 percent, since that was how much her estimation differed from the actual amount.
<h2><u>5 percent</u></h2>