Answer:
Step-by-step explanation:

The correct answer to the first question would be the statement 'A protractor and ruler are used to take accurate measurements'. The protractor and the ruler can be used to construct polygons and parallel lines interchangeably.
The correct answer to the second question would be 'open the compass to the width of the line and draw two arcs'.
Answer:
Option A is correct.
Sample space is the collection of all possible outcomes of a random phenomenon.
Step-by-step explanation:
- Sample Space
The sample space of a phenomenon is the set of all possible outcomes for that phenomenon.
- Distribution
The distribution of a statistical data set is defined as a listing or function showing all the possible values (or intervals) of the data and how often they occur.
- Probability
Probability describes how likely something is to happen. Probability values are usually between 0 and 1; with 0 denoting impossibility and 1 denoting total certainty.
- Census
Census is an official count or survey of a population
<h3>The number of beads lina has is 31</h3><h3>
Laura made a mistake by adding the constant 7 and variable 4b</h3>
<em><u>Solution:</u></em>
Given that,
Laura wrote and solved the following expression to find the total number of beads Lina has
There are 6 beads in each packet
7+4b = 11b
= 11(6)
=66
From given,
Lina has a total of 7 + 4b beads
Given that, There are 6 beads in each packet
Substitute b = 6
7 + 4(6)
Simplify
7 + 24
Add
31
Thus, she has a total of 31 beads and not 66 beads
Laura made a mistake by adding the constant 7 and variable 4b
But a constant and variable cannot be added