Two partial receipts for school supply are shown how much does each notebook and each pen cost notebooks and 3 pens tot 195 and 6 notebooks 2 ped and total 162

using elemenation method

hi. how many notebooks were bought from receipt amounting 195 php?

answer:

marlo is 20 yrs old while his brother is 60 years ild so you just need to add 20 and 60 thats why it is 80 (just my opinion)