Pls, help I'm so lost- how many different ways can a SRC with 4 members be chosen from a group of 5 people?

The solution set for 5v2 – 125 = 0 is

An equation where variables are used to represent known values—function notation true or false

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet