## Basic College Mathematics (10th Edition)

(a) x is the unkknown percent $897=(x)(3450)$ $897\div3450 = 3450x\div3450$ $0.26=x$ (b) x is the unkknown percent $1311=(x)(3450)$ $1311\div3450 = 3450x\div3450$ $0.38=x$