Step-by-step explanation:
(b) If
then
Note that
cancel out so we get

Solving for
we get

(c) I'm not sure what the problem is asking for but here goes. As r doubles,
becomes

Lets say 'x' is the number.
so you do 6/100 times x= 20/100 times 6
and that equals 6/100x=6/5
x=20
good luck!
By calculator: it's 2.378
Since 2^5 = 32, so 32^(1/4) = 2^(5/4)
Answer:
1/6 cups more
Step-by-step explanation:
1/2=3/6
1/3=2/6
3/6-2/6=1/6
AQ : QE = 2 : 1 ( property of a centroid of a triangle)
Therefore 2/1 = 18 / QE
2QE = 18
QE = 9 (answer)