Fern's estimate is not correct because he rounded 548 wrong, it would be rounded to 550 instead since the number 8 is closer to 10. So the correct answer would be 420.
Answer:
is it timetable just wanna know an i help
Step-by-step explanation:
18=r/2
Multiply by 2 on each side,
36=r
r=36
Hope this helps.
Answer:
5/6
Step-by-step explanation:
2/3=4/6 and 4/6+1/6=5/6