Which two scenarios correctly identity the dependent variable ? Thomas is purchasing apps for his iPad at $0.99 each
The total cost is determined by the number of apps he purchases.
The dependent variable is the total number of apps purchased
Ele earns $15 an hour babysitting,
The total amount Ellie earns depends on the number of hours she babysits.
The dependent variable is the total amount Ellie earns
Taylor's dad is building a terrarium for his lizards
The number of lizards will determine how many shelves are in the terrarium
The dependent variable is the number of shelves in the terrarium.