Answer:
1/4(8+m)
Step-by-step explanation:
this is your answer for sure
As it is a rectangle....
therefore Area of rectangle
LB
13*10. (here star means multiplication)
130
perimeter of rectangle
2(l+b)
2(13+10)
2*23
46m
1. Given (12+3)x, we can sum the numbers in the parenthesis to get 15x
2. Given 12x+3x, we can factor x to get (12+3)x and get the same as 1.
3. Given (12+3x)x, we have to distribute the x and we have 
4. This expression is already simplified.
the answer is even number.
Answer: 365.6938775510204081602040816326530612245
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Step-by-step explanation: Multiply 12 x 34 you get 408
And then multiply each number. You can even use a calculator.