What expression can be used to determine the total cost of buying g pounds of granola for $3.25per pound and f pounds of flour for $0.74per pound

1pound of granola= $3.25

g pound of granola=g*3.25

=3.25g$

1 pound of flour = 0.74$

f pound of flour = f*0.74

= 0.74f$
Hope this helps
I saw a similar formula online