Asimple random sample of colleges and universities in the united states has a mean tuition of with a standard deviation of . construct an confidence interval for the mean tuition for all colleges and universities in the united states. round the answers to the nearest whole number.

Tori examined the pattern of exponents in the table. based on the pattern, which statements are true? check all that apply.

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.