The cost of a school banquet is 95$ plus 15$ for each person attending. write and equation that gives the total cost as a function of the number of epople attending. what s the cost for 77 people?

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?