Answer:
Option B. $72, because the price of each pack is $8
Step-by-step explanation:
Looking at the double number line we have that
The price of 2 packs of spaghetti is $16
The price of 4 packs of spaghetti is $32
The price of 6 packs of spaghetti is $48
The price of 8 packs of spaghetti is $64
To find out he units rate, divide the price by the number of packs
[tex]\$16/2=8\frac{\$}{pack}[/tex]
Find out what is the price of 9 packs of spaghetti
Multiply the unit rate by 9
[tex]8\frac{\$}{pack}(9\ packs)=\$72[/tex]
therefore
The price of 9 spaghetti packs is $72
