40. A commonly accepted angle of elevation for safe, accessible wheelchair ramps is \( 4.5 ^ { \circ } . \) The public library's main door is \( 1.2 m \) above street level. What will be the run of this ramp?
\( \square 0.07 m \)
\( \square 11.44 m \)
\( \square 1.32m\)
\( \square 15.25 m\)
15.25 m
Joe earns \( \$ 9 \) per hour. He worked \( x \) hours on both Wednesday and Friday, and \( 8 \) hours on both Tuesday and Saturday. Write an expression to represent how much Joe earned.
If a virus spreads at a rate that can be modeled by the exponential function \( A ( t ) = ae ^ { r t } \) , how many people will be infected after \( 5 \) days if initially \( 3 \) people are infected and the growth rate is \( 40 \% \) ?
