Answer:
A) 5.4 cm
Step-by-step explanation:
Length of mid segment = (sum of parallel sides )/2
Sum of parallel sides = PQ + SR = 9 + SR

If I understand this problem correctly the answer would be 29 more people can board the plane! Hope this helps! Comment if you have questions!!!
the 2nd expression is the answer
Answer:
The unit rate of 297 words for 5.5 minutes is, 54 words per minutes
hope this helps :-)
Perimeter is the sum of all the sides of the shape
do you know the length of each side of the parallelogram?