The distance din miles from an observer to the horizon over flat land or water can be estimated using the formula d-123/
where h is the height in feet of the point of observation. how far is the horizon for aperson whose eyes are 6 feet above the
ground?
a about 5.91 mi
c. about 3.01 mi
b. about 2.73 mi
d. about 7.64 mi

Find the area of the regular hexagon if a side is 20 cm.

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?