For perimeter you add all of the sides but for area you multiply each side
Answer:
23/90
Step-by-step explanation:
- 55/90 + 12/90 = 67/90
- 90 - 67 = 23
- 23/90
23/90 balls are green or white
i hope this helps!
Answer:
74.56 miles / h
Step-by-step explanation:
1 mile = 1.609 km
Using the dimensional analysis you multiply the number you want to convert by 1 (using a fraction with the needed units)
Since 1 mile = 1.609 km then:

Now to convert 120 kilometers per hour to miles per hour :
