If you can only purchase the risk free and one of the risky assets, what is the highest return you can obtain with a standard deviation of $13\mathrm{.}75\%?$

Enter your answer as a percent, rounded to $2$ decimal places.

Security Expected Return Standard Deviation

Blackberry $8\mathrm{.}00\%2\mathrm{.}75\%$

Shopify $12\mathrm{.}75\%13\mathrm{.}75\%$

Risk Free $2\mathrm{.}25\%$