A school principal of 890 students needs to determine what percentage of students passed and did not pass a statewide examination. Round to the nearest percent. If 300 students passed the exam, what percent passed the test?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.