$7-$ Joyce Chen was hired on September $29,2002,$ and was paid on a bi$-$weekly basis. When Joyce left employment on January $19$ of the current year, the employer determined the insurable hours for the past $27$ bi$-$weekly pay periods based on Joyce$$s work hours of $75$ insurable hours per pay period. Find the amount of insurable hours.

$8-$Connie LoBean was hired on January $8$ of the current year, worked $40$ hours per week and was paid every week. Connie worked $15$ hours of overtime in February. Connie$$s employment was terminated on April $13$ due to a shortage of work. The employer determined the insurable hours for the past $14$ weekly pay periods $($the entire period of employment$).$ Find the amount of insurable hours.

$9-$Joyce Chen was hired on September $29,2002,$ and was paid on a bi$-$weekly basis. When Joyce left employment on January $19$ of the current year, the employer determined the insurable earnings for the past $14$ bi$-$weekly pay periods based on Joyce$$s insurable earnings of $$1,500\mathrm{.}00$ per pay period. Find the amount of insurable earnings.