first change the fraction into improper fraction which is [tex] \frac{15}{4} [/tex]
then multiply by 7 days [tex] \frac{7×15}{4} [/tex]
which gives you:[tex] \frac{105}{4} [/tex] now chage back to mixed fraction [tex]26 \frac{1}{4} [/tex] hours or 26.25 hours
