I believe the 3rd answer down if the information you provided is correct
Squaring the sum on the top, rules out 1 and 2 (not squaring the 7 only)
then 4 times the difference. so I believe 4 (x-1) on the bottom.
Answer:
work is shown and pictured
I think its -1 i not very smart so it probably wrong
DO NOT CLICK THE LINK THE OTHER PERSON WHO ANSWERED SAID. PLEASE DONT
Answer:
39 liters
Step-by-step explanation:
6.5×6=39
so 39 litres