7.77/129.5 = 0.06
Therefore the tax rate is 6%
Answer:

Step-by-step explanation:
Collect like terms and calculate the sum
Answer:
h/4=h-5
Step-by-step explanation:
quotient means divide
less means subtract
is means equal
He can only pick 7 different groups because 2 times 7 is 14, and there are 15 people in all.
Hope this helps. c: