Answer:
it is 2 laps per minute
Step-by-step explanation:
tell me if it is correct
42sq
5:7
30 sq: x sq
30/5=6 sq for 1 of the ratio
6*7=42 sq for 7 of the ratio
the answer is 9
30 percent of 30 is 9
40 percent of 30 is 12
12+9 =21
30-21 =9
the answer you are looking for is B