The Metro Construction Company Had the Following Financial Data as of December

The Metro Construction Company had the following financial data as of December 31, 2018:
$$\begin{array} { | l | r | } \hline \text { Cash } & \$ 90,000 \\\hline \text { Cash Equivalents } & 30,000 \\\hline \text { Accounts Receivable } & 55,000 \\\hline \text { Total current liabilities } & 80,000 \\\hline\end{array}$$ $\begin{array}{lrr} \text { Cash and cash equivalents} &\$120,000\\ \text { Total cuurent liabilities} &80,000\\\end{array}$
a. What is the cash ratio as of December 31, 2018? Show the formula and your computations.
b. Comment on the cash ratio for Metro Construction Company.