Question

Anita works for a dog-walking service. She earns a one-time fee of $10 plus an additional $2 for each dog she walks. If Anita wants to earn at least $40, what is the minimum number of dogs she must walk?

Answer 1

40=10+2x where x is the number of dogs.
30=2x
x=15
Therefore she must walk 15 dogs

Hope this helps :)