Ineed asap been stuck on this for almost 2 days now (no joke)

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost