P$3-10.$ Liana Alvarez, employer ofers its workers a two$-$month paid abating trope a ven year. lane

Who was are working to the rim, plan to spend her sabbatical routinear deposta stimate cont or $00$ To no ere the lan plans o make six annual end$-$of$-$year deposits of $52,500$ cach, scarcing this year, into an investment account earning $8\%$ interest.

a$.$ Will Lillana's account balance at the end of seven years be enough to pay for her trip?

b$.$ Suppose Lilana our baher antual contribution to $$3,150.$ How large will her account balance be at the end of seven years?