Answer:
Kenny will get $16 change from $100 if he buys a book of 8.
Explanation:
Given cost of each ticket of the dinosaurs now exhibit = $10.50.
Total number of tickets = 8 tickets.
Total amount Kenny has to buy tickets = $100.
He need to buy only 8 tickets.
Total cost of 8 tickets = cost of one ticket × total number of tickets
= 10.50 × 8
= $84.
Therefore cost of all 8 tickets is $84.
Kenny would left money = 100 - 84 = $16.
Therefore, Kenny will get $16 change from $100 if he buys a book of 8.