Find the length of the third side. If necessary, write in simplest radical form 7,10

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

The graph shows the distance kerri drives on a trip. what is kerri's speed?

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?