Solve the Rational Equation $$\frac { 1 } { x - 4 } - \frac { 5 } { x + 1 } = \frac { 1 } { x ^ { 2 } - 3 x - 4 }$$

Q79: Solve the proportion. <span class="ql-formula"

Q80: Competing in a mini-triathlon, Catherine ran 3

Q81: Simplify the complex fraction by using

Q82: Write the domain of the rational

Q83: Solve the proportion. <span class="ql-formula"

Q85: Q varies inversely as the square of

Q86: Write a variation model. Use k

Q87: A bus driver follows a morning route

Q88: Evaluate the rational function, if possible.

Q89: B varies directly as m and