The number of shoes a group of college students own is approximately Normally distributed with a mean of 22.1 and a standard deviation of 6.3. About what proportion of the students own between 20 and 30 pairs of shoes? Use a graphing calculator to find the answer. 0.1049
0.3694
0.4744
0.5256
0.8951

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii

The chanleys drove 112 miles ( or 7) on 4 gallons of gas. at this rate, how many mikes will they drive on 8 gallons

What is the tychonic system? a. a model of the solar system in which all the planets (including earth) orbit the sun b. a model of the solar system in which the planets, moon, and sun orbit earth c. a model of the solar system where the planets orbit the sun, and this system orbits earth d. a model where all the planets and earth are fixed in space and only the sun and moon move e. a model that expands the system to a vast number of galaxies and star systems