Its 5 for the first 1 1/3 for the second one
Set up a proportion
90/x = 60/100
60x = 9000
x = 150
if you're wondering why I used 60 instead of 40 in the proportion it is because $90 is 60% of the original price, not 40%
hope this helps!
$7.56 is the answer to your question
The number of rows is the length
the nuumber of collumns is the width
alrighty
length times widdth=total number of cupcaces
so we factor 120 to find odd and even pairs
120=1*2*2*2*3*5
so some even and odd pairs are
1*120
3*40
5*24
8*15
those are all the possible pairs
so they can make 4 different arrangements
Ratio problem
1 cm = 120 km
------- = --------
x 463
120x = 463
x = 23.15 = 23.2