b (?) and c
m and n have the same slope (-2/5) so m//n
Answer: The answer is 22,452
Step-by-step explanation: Multiply 6×2 which will be 12
Put the 1 from the 12 on top of the 4 then do 4×6+1 it will equal 25
Then put the 2 on top of the 7 then do 7×6+2 it will equal 44
Then put the 4 on top of the 3 then do 3×6+4 it will equal 22
And that's how you get your answer.
Answer: no, 7xy and 2xy are not like terms
42
Step-by-step explanation:
<em>I added 11+12+10+9=42</em>
Answer:
39. r = 13.4
40. m = 12
Step-by-step explanation:
39. Given the equation, 
, to solve for r, the following are the correct steps to take to arrive at the solution:
(given)
Add 0.8 to both sides of the equation (addition property of equality)
(this is where the error occurred.)
40. The correct steps to take in solving the equation, 
is as follows:
(given)
Multiply both sides by 3 (multiplication property of equality)
(this is where the error occurred. This is what we should have at this line/step)
(dividing both sides by -1)
