Abigail collected more, she collected 87.5 lb
they collected 107.5 pounds together
Without a lot more information, nobody can say. Every city, state, and county
can have its own taxes. They may be at a different rate from other cities, states,
and counties, and they may apply to different items.
It's an easy problems. what equations are you trying to find?
9u-9t=18
original no. is 10t+u
reversed no. is 10u+t
so its (10u+t)-(10t+u)=18
which gives 9u-9t=18
