First student is correct. explanation: 2+2+13+13=30, if the perimeter has to be at least 30 13 is the option that adds up to it.
Its 81.
Median is the middle number.
Rearrange the numbers to smallest to biggest.
70,77,80,_,82,87,88
if the median of the data set is 81 the middle number needs to be 81.
So the missing number is 81.
70,77,80,81,82,87,88
Answer:
4.8
Step-by-step explanation:
The scale factor is (3.6)/3=1.2. Hence x/4=1.2, x=4.8