Question 8 (Mandatory) (1 point) If Tina starts out at \( 10 \mathrm{~m} / \mathrm{s} \), and in 10 s speeds up to \( 20 \mathrm{~m} / \mathrm{s} \), what is her acceleration? \( 100 \mathrm{~m} / \mathrm{s} / \mathrm{s} \) \( 2 \mathrm{~m} / \mathrm{s} / \mathrm{s} \) \( 1 \mathrm{~m} / \mathrm{s} / \mathrm{s} \) \( 3 \mathrm{~m} / \mathrm{s} / \mathrm{s} \)

What is \( (f-g)(x) ? \) \[ \begin{array}{l}f(x)=3 x^{2}+3 x \\ g(x)=x+6\end{array} \]

A presidential candidate plans to begin her campaign by visiting the capitals in 3 of 48 states. What is the probability that she selects the route of three specific capitals? P (she selects the route of three specific capitals) (Type an integer or a simplified fraction.)

c) \( \lim _{n \rightarrow \infty}\left(\frac{\sqrt{2 n}}{\sqrt{n+2}}+\frac{\sqrt{6 n-4}}{\sqrt{3 n-5}}\right) \)

a) \( 0.87=\ldots \)

The Coffee Counter charges \( \$ 9 \) per pound for Kenyan French Roast coffee and \( \$ 8 \) per pound for Sumatran coffee. How much of each type should be used to make a 20 pound blend that sells for \( \$ 8.70 \) per pound? The Coffee Counter should mix \( \square \) pounds of Kenyan Roast coffee and \( \square \) pounds of Sumatran coffee to make 20 pounds of a blend that sells for \( \$ 8.70 \) per pound.