Answer:

Step-by-step explanation:

There are two variables here, which are time (minutes) and the number of beats, and they both have a relationship (68 beats in one minute), therefore it is an example of a unit rate
Answer:
5(3a ⋅ 4) = (5 ⋅ 3a) ⋅ 4
Step-by-step explanation:
The Associative Property is applied to two types of operations: addition and multiplication. This property indicates that, when there are three or more terms in these operations, the result does not depend on the way in which the terms are grouped.
In this sense, the associative property for the sum is mathematically given by:

and for the multiplication by:

Now, let:

Using the Associative Property of Multiplication:

Therefore the equivalent expressions are:
5(3a ⋅ 4) = (5 ⋅ 3a) ⋅ 4
sales must he make in a week for both plans to result in the same salary be = 500+ 0.02x.
<h3>What is inequality?</h3>
A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
Given:
plan 1 is a weekly salary of $500 plus 2% commission of sales.
plan 2 is a straight commission of 6% of sales.
So, sales must he make in a week for both plans to result in the same salary be = 500+ 0.02x.
Learn more about this concept here:
brainly.com/question/196530
#SPJ1