How many thousands are in 20 hundreds? n

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

What is the difference between –12 and –5? what is the distance between –12 and –7 on a number line? units

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?