During a science experiment, the initial temperature of an unknown solution is 133.3 Kelvin. A scientist mixes another chemical with the solution. After five minutes, the
chemical reaction causes the temperature of the solution to be - 153.6 Kelvin.
a. Write and solve an equation that to find the temperature change caused by the
chemical reaction.
b. Did the chemical reaction cause an increase or decrease in the temperature of the
solution? Explain.

Here are the steps

1: Put the compass on Q and make the width equal to the distance from Q to L. Extend line LM towards the left side of L and draw an arc hitting the line segment on the left side of L

2.  Without changing the width and position of the compass, draw an arc between L and M.

3. Without changing the width of the compass, put the compass on the point of intersection of the arc and line LM (left side of L). Draw an arc above line LM.

4. Without changing the width of the compass, put the compass on the point of intersection of the arc and line LM (right side of L). Draw an arc above line LM.

5. Use a straight edge to make a line from the intersection of the two arcs above line LM to Q intersecting through L along the way.