Problem: Isabella is buying art supplies the table shows the prices for the items she buy |table : glass beads $0.28 per ounce $0.95 paint brush 0.75$ poster board jar of paint $0.99. She spends 2.25 on poster boards how many does she buys Part B Isabella spends $4.87 on paint brushes and paint how many of each item does she buy explain how u found it answer. Can’t figure it out need help !

the complete question in the attached figurePart Awe knowprice poster boards----------- > $0.75letp------------- > number of poster boardsq------------- > money spends on poster boards----------> $2.25q=p*0.75---------> p=q/0.75=2.25/0.75=3the answer part A is 3Part BLet x-------------- >number of paint brushes------------ > $0.95y-------------- >number of jar of paint ------------ > $0.99
we know0.95x+0.99y=4.87using a graph toolsee the attached figurethe solution is the line shown in the graphthe solution must be a pair of whole numbers, the only pair that meets that condition is the point (2,3)

x=2-------------- >number of paint brushes
y=3-------------- >number of jar of paint