A show is on Friday, Saturday and Sunday. 2/5 of the total tickets sold are for the Saturday show.
240 tickets are sold for the Saturday show.
Three times as many tickets are sold for the Sunday show as for the Friday show.
How many tickets are sold for the Sunday show?

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.

Find the slope intercept form of (-3,6) and (3,-6)

An entertainment firm offer serveral dj choices and light shows that range in price based on the rental time period. the djs cost between $219 and $369 per night and the light shows cost between $159 and $309 per night. if you are booking both a dj and a light show write a compound inequality that represents the possible total amount you would pay x