A construction supplier is determining which type of cement sells the best. The table shows the rates at which each type sold . A workday is 8 hours, and each pound of cement sells for $ 4.50 . List the types of cements in order from highest to lowest unit rate of pounds sold per day . 7.RP.2,7.RP.2k

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters