What are the solutions to the system of linear equalities 10x+4y< 12 8x-3y> 20

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?