Mean is average
triangle has 3 sides
mean of its sides is
if the sides are a,b,c meause then mean of the sides is (a+b+c)/3=mean=18
perimiter=a+b+c
therefor
perimiter/3=18
multiply both sides by 3
perimiter=54 yardds
The original price is @42. To check, find 10% of $42, which is $4.2. Now just subtract $4.2 from the original price, $42, and you get $37.8
Answer: the difference is 3
Step-by-step explanation: give question
Answer:
C is the only correct answer
Answer:
B-105.4 min
explanation
i just learned that just now
