Brad want to buy flowers for his friend with$15. The daisies are $1 each and the roses are $3 each. He buys 3 more daisies than roses
Let the number of roses he buy be n. Then the number of daisies he buys will be n+3. Thus, [latex]roses+daisiesleq 15[/latex] [latex]3*(n)+1*(n+3)leq 15[/latex] [latex]nleq 3[/latex] Brad can buy 3 roses and 6 daisies.