tonya pays $300.each month to rent a office were she earns $25 per hour tutoring students. which equation repersants tonyas profit, y, for working x hours?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

For each proportion find the unknown number x 1/5/8=×/15

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?