This may be wrong but I'm going to go with B. 1/7 x 9/10
Hope this helps! ( Probably didn't help in any way but I tried).
1. Mean is the number you get when you add all these numbers and then divide by the number of numbers. So, (31 + 28 + 30 + 31 + 30) / 5 = 150 / 5 = 30
2. The median is the middle number in the list of numbers, so, the answer is 30 as well.
3. Mode is the number that appears most often, so here it is 30 and 31 because they both appear 2 times.
4. Range is the difference between the largest and smallest number, so 31 - 28 = 3.
Answer:
C)
Step-by-step explanation:
Every
is 6 times bigger than 
Answer:
k=5b/4−3/4
Step-by-step explanation:
3-3k+7k=5b
Isolate the variable by dividing each side by factors that don't contain the variable.
k=5b/4−3/4
-hope it helps