Problem 7.1: [3] Display all eventno, datereq and estcost, whose estcost is lesser than maximum estcost of current requested events. [3] Problem 7.2: Write a query to find all the customers who's city is same as 'Baseball [3] Problem 7.3: Write a query to display information of Eventrequest which has estcost more than any Approved event. [3] Problem 7.4: Write a query to list all the eventrequest, which has estcost