Elena has $225 in her bank account. She takes out $20 each week for
w weeks. After
dollars left in her bank
w weeks she has d
account.
Write an equation that represents the amount of
money left in her bank account after W weeks.

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?