Answer: 81
Step-by-step explanation:
Mean of four nos = 85
Score = 85 x 4 = 340
Deduct 97 from 340 = 243
Mean of three nos. 243/3 = 81
They can travel 110 miles for 5 gallons of gas.
22 • 5 = 110 miles on 5 gallons of gas
1 meter = 1,000 millimeter
We can solve this by making two proportion or millimeter over meter: 

Now you must solve for the unknown meter under the first proportion:
(1,000)(x meter) = 19.5 * 1
1,000(x meter) = 19.5
x meter = 0.0195 m
19.5 mm = 0.0195 m
Hope this helped! Let me know if you have any further questions
~ Just a girl in love with Shawn Mendes
Answer: 30 square yards: C