On november 30, jim kelley wrote check number 678 for $45.90. if his previous balance was $1,904.56, what is his new balance after he records this check?

Can someone me with these two circle theorem questions asap?

What percent of 18 is 24? and plz explain thx.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.