Answer :

luana
[tex]15\%\ multiply\ by\ cost\ of\ dinner\ 25,20\$\\\\ 15\%=\frac{15}{100}=0,15\\\\ 15\%*25,20=0,15*25,20=3,78\$\\\\ Service\ tip\ is\ equal\ to\ 3,78\$.[/tex]
mariamikayla
[tex]15 \% \ of 25.50 \$=\frac{15}{100}* 25.50=\\ \\ =\frac{3}{20}*25.50= 3*1.275=\boxed{3.825 \$-the \ tip}[/tex]

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