Answer:
Number of pencils received by Dylan = 19
Number of pencils received by Ivy = 
Number of pencils received by Tyrone = 
Step-by-step explanation:
Given:
Ivy, Dylan, and Tyrone have together 100 pencils.
Ivy has 8 more pencils than Dylan.
Tyrone has twice as many pencils as Ivy.
To find: Number of pencils received by Ivy, Dylan, and Tyrone
Solution:
Let number of pencils received by Dylan = x
So, number of pencils received by Ivy = 
number of pencils received by Tyrone = 
Total number of pencils with Ivy, Dylan, and Tyrone = 100
So,

Number of pencils received by Dylan = 19
Number of pencils received by Ivy = 
Number of pencils received by Tyrone = 