Answer: m
=
3
Step-by-step explanation:
X=9
3x-12=x+6
2x-12=6
2x=18
X=9
I think it’s c, because if the . next to the 12 means x then yes. There should be an c near 12 because we have no clue how much the notebooks are. If the . doesn’t mean x then it should be d.
Answer:
684 mm squared
Step-by-step explanation:
Very simple. It's 18mm multiplied by 38 mm.
18 mm * 38 mm = 684 mm2
This is a multiplication problem, so you multiply 4 x 5 1/5. First change 5 1/5 into an improper fraction. Do this by multiplying the denominator and whole, then add the numerator. 5 x 5 + 1= 26. Improper fraction is 26/5. Now multiply 4 x 26/5. 4 x 26= 104. So it is 104/5. Now if you want a mixed number your answer is 20 4/5
