Answer:
55
Step-by-step explanation:
It would be B
Hope this helps! ;)
x&y just cancel out for 7
x and y should both be 3
its the best choice
divide 2 by three to know how many you can solve in one min= 2/3= .67
divide 12 by .67 to know how many you can solve in one min= 12/.67= 18.
You can solve 18 problems in 12 min!!
