Which property is illustrated by the following statement? 8+3.4=3.4+8? associative property of addition, inverse property of addition, inverse property of multiplication, commutative property of addition

Consider the given statement:

8+3.4=3.4+8

We have to identify the property used in this statement.

1. Associative Property of Addition: Let a,b and c be three real numbers. This property states that . This property is not used in the given statement.

2. Inverse property of addition: A number 'a' is said to have an inverse '-a' if . This property is not used in the given statement.

3. Inverse property of multiplication: A number 'a' is said to have an inverse '' if . This property is not used in the given statement.

4. Commutative property of addition: Let 'a' and 'b' be two real numbers. This property states that .

In the given statement, 8+3.4=3.4+8

which is expressed as 8+12 = 12+8, this statement holds commutative property of addition as whether 8 is added to 12 or 12  is added to 8, the result is same.

So, Commutative property of addition is illustrated in this statement.

answer: 88

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).