8. three friends each bought two slices of pizza and a drink at the mall. if drinks cost $0.75,
and the total of their order was $11.25, how much did one slice of pizza cost?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

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?

In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units