Question

Take look at this I need help

Answer 1

Answer: -73.1. Multiply -3.4 by 21.5 so the answer is -73.1

Explanation:

Answer 2

`\begin{array}{ccll} km&\stackrel{km }{speed~change}\\ \cline{1-2} 1 & -3.4\\ 21.5& x \end{array} \implies \cfrac{1}{21.5}~~=~~\cfrac{-3.4}{x} \\\\\\ x=(21.5)(-3.4)\implies x=-73.1`