Answer: Total cost of the models the town buy = $1050
Solution:
The science museum sells dinosaurs models to the town school and town library for $105 each.
The two library buys 4 models and cost of each model $105
Total cost pay by library = 4x105 = $420
The school buys 6 models and cost of each model $105
Total cost pay by school = 6x105 = 630
We need to calculate total cost of the models the town buys
Total cost = Cost buy library + Cost buy school
Total cost = 420+630
Total cost = $1050
