What is 100 times as much as 23.25

The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Determine domain and range, largest open interval, and intervals which function is continuous.