$1.$ Solve Problem $16\mathrm{.}4$ from the book.$$ Note the corrections.

Determine the quantities of materials required per cubic yard to create a concrete mix. The specifications require a maximum size aggregate of $1(1)/(2)$ in$.,$ a minimum cement content of $5(1)/(2)$ sacks per cy$,$ and a maximum water$-$cement ratio of $0\mathrm{.}63.$ Assume $5\%$ air voids.