Respuesta :

You would have to put 4.99 times 20 which will cost 99.80 for 20 gallons.
potatopeel

Answer:

if one gallon is 4.99, 20 gallons?

write a ratio to make it easier

gallon : price

1 4.99

20 x

cross multiply,

x = 20 × 4.99

x=99.8