(c) The cost of a bottle of water is (w - 1) cents. The cost of a bottle of milk is (2w - 11) cents.
A certain number of bottles of water costs $4.80
The same number of bottles of milk costs $7.80.
Find the value of wr.

What is the range of the data below? .8090100

Need on this geometry question. explain how you did it.

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?