I hope this helps you
Area=pi.r^2
Area =3,14.5^2
Area =78,5
Answer:B or A is the answer
Step-by-step explanation:
Answer:
89
Step-by-step explanation:
100/36= 2.77777778
2.77777778·32 = 88.8888889
89
Hello,
let's assume j the john's age, m the mary's age.
<span>"John is twice as old as mary"==>j=2*m
</span>
<span>"the sum of their ages is 21" ==>j+m=21
==>2*m+m=21
==>3m=21
==>m=7
and j=21-7=14
</span>
