Answer:
1) Given, 2) Inverse property of addition, 3) Commutative property/Identity property of addition, 4) Inverse property of multiplication, 5) Identity property of multiplication/Result.
Step-by-step explanation:
In this exercise we present what real number properties are used in each step of the given procedure with its respective explanations:
1)
<em>Given</em>
2)
<em>Inverse property of addition</em>
The inverse property of addition states that:
, 

3)
<em>Commutative property/Identity property of addition</em>
The commutative property of real numbers states that:
, 
The identity property of addition of real numbers states that:
, 
4)
<em>Inverse property of multiplication. </em>
The inverse property of real numbers states that:
, 

5)
<em>Identity property of multiplication/Result.</em>
The identity property of multiplication of real numbers states that:
, 
Answer:
0.34
Step-by-step explanation:
iff we think of them all as a percentage then it looks like
25% + 17% + 21% + 3%
then you add them to get 66%
now you know you are missing 34% to make up the rest of the area.
To solve this you simply multiply 0.1 by 3.7
0.1×3.7= 0.37
4 + (3x) = y (or total amount)
start with 0, then work your way up:
(0, 4)
(1, 7)
(2, 10)
(3, 13)
(4, 16)
etc
hope this helps
& may Joan of Arc bring you good tidings XD