91m+13n+52 ....
hope this helps!!!
Answer:
86
Step-by-step explanation:
1. a+b=14 ⇒ a= 14-b
2. 10a+b=18+10b+a ⇒ a= 2+b
comparing 1 and 2:
14-b= 2+b ⇒ 2b= 12 ⇒ b= 6
a= 14-b= 8
number = 86
reversed number = 68
The Population mean is 3.3 and the Sample mean is 3.6, 3.6-3.3 is 0.3
Answer:
D) x = 12
Step-by-step explanation:
Given:

1. Multiply both sides by 4

2. Subtract 3x from both sides

3. Add 28 to both sides

4. Divide both sides by 7 to isolate the variable:

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brainly.com/question/27844194
Answer: Mark's sample is more representative.
Step-by-step explanation: