Answer:
f = 11.1
Step-by-step explanation:
given
f ÷ 15 = 0.74 , that is
[tex]\frac{f}{15}[/tex] = 0.74 ( multiply both sides by 15 )
15 × [tex]\frac{f}{15}[/tex] = 15 × 0.74 ( simplify both sides )