Pls quick which best describe the table

Twelve less than a number is at most 20

Which function represents the sequence? f(n)=n+3 f(n)=7n−4 f(n)=3n+7 f(n)=n+7

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year