Nina babysits on weekends for extra money. The function f(t) is equal to how much money she earns after babysitting t hours. On Friday night, f(4)=60. How many hours did Nina babysit on Friday night?
![Nina babysits on weekends for extra money The function ft is equal to how much money she earns after babysitting t hours On Friday night f460 How many hours did class=](https://us-static.z-dn.net/files/df4/8ddf20dcfe9334b144949e6e8787430d.png)
Answer:
4
Step-by-step explanation:
t is replaced by 4 and t = hours