Your answer is 61. You welcome
For number 6, Tom's unit rate was 0.1254 per meter. Samma's unit rate 0.1299 per meter. So Samma had a faster unit rate by 0.0045.
For number 8:
$10.45 ÷ 5 = $2.90
So the unit rate is $2.90.
Hope this helps. :)
52÷8=6.5
This is because 8 can go into 52, six times then your decimal pops up.