Answer:
Yes if [3,5] is a set of integers then it contains elements 3,4,5
As Closed bracket denotes that extreme points are also included and 4 is mid element in between 3 and 5
Answer:
2a plus 3/4b
Step-by-step explanation:
First distribute the fractions.
Second communitate variable a.
Third communitate variable b.
Finally simplify.
Answer:

Step-by-step explanation:
Given the expression

Remove parentheses: (a)=a

Group like terms

Add similar elements
∵ 
Add similar elements
∵ 
Thus, the equivalent expression in simplified form:

Answer:
mini disc diameter:disc diameter
14cm:21cm = 7:10.5 = 3.5:5.25 = 1:1.5
Least to greatest: 2/5, 3/5, 7/10, 3/4