Step-by-step explanation:
Before we answer, the area of a Circle given it radius is

The area of a circle given it diameter is

So let answers question 1-4.
1. The area is

2. The area is

3.

4.

For the 5th problem, circumference is

where d is the diameter and

where r is the radius.
A circumference of 100 m means the radius is 50 because


So this means the area is


<h2>
Explanation:</h2>
in this problem we have the following expression:

So here:

Let's convert them as improper fractions:

Rewriting our expression:

<h2>Learn more:</h2>
Simplify: brainly.com/question/10644722
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The number of even positive integers less than a.b, i.e 90, is 45.
<h3>What are Arithmetic operations?</h3>
Arithmetic operations can also be specified by subtract, divide, and multiplying built-in functions.
Given that
a = 7 and b = 13
⇒ ab
Substitute the values of a and b in the above expression,
⇒ (7)(13)
⇒ 91
Since the number of even positive integers is less than
⇒ ab > even positive
⇒ 90 > even positive
since the even number less than a.b i.e. 91 is 90,
Here, 90 is the 45th number in the series of even positive numbers.
Thus, the number of even positive integer less than a.b, i.e 90, is 45
Learn more about Arithmetic operations here:
brainly.com/question/25834626
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Charts can have different functionalities depending on the purpose or what you want to show with each chart. In general, graphs display data.
<h3>What is a graph?</h3>
A graph is a term to refer to the graphic representation of data related to some particular event or situation. There are several types of graphs such as:
- Dot plots
- Pie charts
- Bar charts
- Comparison charts
- Among others
According to the above, to choose the right graph for our task we must identify what our main purpose is and select the type of graph that best suits our purpose.
Note: This question is incomplete because the is some information missing. However I can answer it based on my general prior knowledge.
Learn more about graphs in: brainly.com/question/14375099
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I think it is 57 I just subtracted the two numbers