Agroup of hikers is descending a mountain at a rate of 400 feet per hour. what is the change in the elevation of hikers after 6 hours

The perimeter of a rhombus with a side of 6 is 24

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?

Which number line correctly shows 0.8 + 0.3?