This equation shows that all the prices of the the bag, eraser, and pencils equals $90. So now all we have to do to find the price of a pencil is solve the equation.
Well if Jason bought a bag for $30, and an eraser for $10, that will equal $40. So he has $50 left. So you divide by 3. 50÷3=16.66. So each pencil costs $16.66. 16.66. 49.98 × 3. + 40. 89.98 rounded up equals 90 --------- ---------- 49.98. 89.98