A promotion included a $2.5 mail-in rebate for the purchase of a 10-liter
bottle of milk and a store coupon for $1.39 off a 5-liter bottle of vegetable
oil. Jesse Gatling bought one 10-liter bottle of milk for $33.00 and a 5-liter
bottle of vegetable oil for
$26.89. Calculate his total cost if an envelope costs $0.10 and a stamp costs
$0.28.

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

is there any photos or whatever?

what is the your question?