Two complimentary angles have measures of 15 degrees and (x+5) what is the value of x?

Ivan began dividing g2  – 6 by g + 1, noting that . he started by placing g in the quotient, as shown below.what is g2  – 6 divided by g + 1? g –  1 –  g + 1  – g  –  7 + g  –  5  + 

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?