Help pls asap 1.tell how the commutative and associative properties of addition can help you evaluate the expression.

2.1 + (5.8 - 4.1)

2.evaluate the expression
2.1 + (5.8 - 4.1)

2.1+5.8-4.1  

= 3.8

Step-by-step explanation:

2.1 + ( 5.8 - 4.1 )

Add 2.1 and 5.8 to get 7.9

7.9 - 4.1

subtract 4.1 from 7.9 to get 3.8

3.8

Factor

= 3 = 3.8

i only know the sequence of arithmetic it adds the first is 5+4 then it goes up as it adds to then it is 9+5 then 14+6 then to 20+7 and so on. 5,9,14,20,27,35.

step-by-step explanation: