A quantity is modeled by $A(t) = 80(0.5)^t$. What does this represent?

Decay, halving each period from a start of 80

Compared with the linear function $g(x) = 100 + 10x$, how does $f(x) = 2^x$ behave for large positive $x$?

$f$ eventually exceeds $g$ and grows much faster

9questions. Pick an answer and you'll see why right away.

Which expression is equivalent to $(x - 5)(x + 2)$ ?
Simplify $\dfrac{x^2 - 16}{x - 4}$ for $x \neq 4$ .
What are the solutions to $x^2 - 3x - 10 = 0$ ?
The discriminant of $2x^2 + 4x + 5 = 0$ is $b^2 - 4ac$ . How many real solutions does the equation have?
If $\sqrt{3x - 2} = 4$ , what is $x$ ?
A quantity is modeled by $A(t) = 80(0.5)^t$ . What does this represent?
The vertex form $f(x) = (x - 2)^2 + 5$ has its vertex at which point?
Compared with the linear function $g(x) = 100 + 10x$ , how does $f(x) = 2^x$ behave for large positive $x$ ?
At how many points do the line $y = x + 2$ and the parabola $y = x^2$ intersect?