0.16(a-4)=0.3(2a+4)
solve the equation

Write the fraction or mixed number and the decimal shown by the model

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?