About 5.3$ per pen. Brainliest?
Answer:
around 4.52.
Fraction form: 
Step-by-step explanation:
Brainliest?
Answer:
$3.15
Step-by-step explanation:
At $2.10 for 70 slices, the rate is apparently 3¢ per slice. That rate multiplied by 105 slices gives $3.15.