Which statement must be true?

a. a statement cannot become a theorem

b. a statement cannot become a proof until it's a theorem

c. a statement cannot become a postulate until its proven

d. a statement cannot become a theorem until it becomes a postulate

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

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

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)