After a rainstorm 1/5 of a ditch that is 7 and 1/2 feet deep, is filled with water. find the amount of the ditch that is filled with water.

Write the equations in logarithmic form 9^4=6,561

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. if the the flagpole is 18 ft tall, how tall is the building? round the the nearest tenth.