DO NOT USE A CALCULATOR!
1. Define a @ b as a @ b = a^2 - b. Calculate 3 @ (5 @ 6).
2. Define $(a,b,c) to be $(a,b,c) = a(b-c). Calculate $($(0,8,6),$(6,3,4),$(1,7,5)).
3. Graph y = -2sqrt(x-3)+1.
4. In a country, population is determined as a function of time. Officials produce population patterns by using the function P(t) = 0.5t^2 + 0.358t. Determine the population (to the nearest whole number) after 110 years of growth. (Hint: 110=100+10)
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