Answer:
r=3
Step-by-step explanation:
First we add 2 to both sides.
That leaves us with 10r=30
Then we can divide both sides by 10
r=3
Whole number: 0.84
Unit fraction: 5/6
Answer: 43,2
Step-by-step explanation:

Answer:
y = 0
Step-by-step explanation:
Plug in 28 for x. Solve for the equation:
x + 3y = 28
(28) + 3y = 28
Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, subtract 28 from both sides:
28 (-28) + 3y = 28 (-28)
3y = 0
Isolate the variable, y. Divide 3 from both sides:
(3y)/3 = (0)/3
y = 0
y = 0 is your answer.
~
Answer:
The graph in the attached figure
Step-by-step explanation:
we have

Solve for x


The solution is the interval ------> (4,∞)
All real numbers greater than 4
In a number line, the solution is the shaded area at right of x=4 (open circle, the number 4 is not included in the solution)
see the attached figure