A shopping center plans to buy some desks, cupboards, and beds. They will buy a total of 300 pieces of furniture. The ratio
of the number of desks to cupboards to beds it plans to
purchase is 5:3:2.
They budget $139,500 to buy the furniture. A desk costs $250
and a bed costs $500. What is the price of a cupboard?

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Maurice has 54 fewer comic books than rebecca.they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection

2.5 milligrams is equivalent to how many grams