Help! please show some sort of proof! thanks xo ive asked this question 3 times please someone help its already late.

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?