Question $15$

Silvernail Company is constructing a specialized piece of machinery for its own use. Construction began in $2017$ and was completed $\frac{12}{31}\frac{?}{17}.$

Silvernail made payments for the project of $$3,000,000$ on $\frac{7}{1},$$$6,300,000$ on $\frac{9}{1},$ and $$6,000,000$ on $\frac{12}{31}.$ Weighted$-$average accumulated

expenditures were

$$15,300,000.$

$$9,300,000.$

$$3,075,000.$

$$3,600,000.$