Arnold’s mean mark in 4 tests is 73. He wants to increase his mean by 5 marks. How many marks must he score in the fifth test?

What is the distance between (–2 1/2,-3) and (1, –3)?

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells,n, and the total amount he earns in a year,e. what is the total amount abe would earn from selling 10 apartments in one year

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14