Ernie Gilmore began working as a part$-$time waiter on June $1,20--,$ at Sporthouse Restaurant. The cash tips of $$470$ that he received during June were reported on Form $4070,$ which he submitted to his employer on July $3.$ During July, he was paid wages of $$630$ by the restaurant. Compute the following amounts. Round your answers to the nearest cent.

OASDI HI

a$.$ The amount of FICA taxes that the employer should withhold from Gilmore's wages during July. $fill in the blank $1$

$68\mathrm{.}2$

$fill in the blank $2$

$15\mathrm{.}95$

b$.$ The amount of the employer's FICA taxes on Gilmore's wages and tips during July. $fill in the blank $3$

$68\mathrm{.}2$

$fill in the blank $4$

$15\mathrm{.}95$