PLEASEE I NEED HELP!! Determine whether each number is part of the solution set of x < 3.9.
x=41
Part of the Solution Set
Not Part of the Solution Set
x= -3.9
x= 3.9
x=4
x = 4,3
X=38

Part of the solution set :

Not part of the solution set :

Step-by-step explanation:

Given that x must be smaller or equal to 3.9 .

So any number that is greater than 3.9 will not be part of the set of x.

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.