If you are looking to write an inequality equation that models this situation, then the answer would be: 
. The "at most" signals to use the less than or equal to sign.
3.67 teaspoons, and 1 divided by 17 is 0.05 teaspoons. (All you have to do is divide the teaspoons by X(17).
Answer:
Target has the best deal.
Step-by-step explanation:
Target gives you a sale of $1.46 per gum
While Meijer gives you a sale of $1.51 per gum
So Target has the best bargain
The time when the maximum serum concentration is reached is obtained by equating the derivative of C(t) to 0.
i.e. dC(t)/dt = 0.06 - 2(0.0002t) = 0.06 - 0.0004t = 0
0.0004t = 0.06
t = 0.06/0.0004 = 150
Therefore, the maximum serum concentration is reached at t = 150 mins
The maximum concentration = 0.06(150) - 0.0002(150)^2 = 9 - 0.0002(22,500) = 9 - 4.5 = 4.5
Therefore, the maximum concentration is 4.5mg/L
