Bobs runs a phone charging station at a local mall. he charges $1.75 to charge a phone and it costs him $0.50 to charge a phone and $20 a day for other expenses. write an equation that can be used to determine the number of phones bob needs to charge in order to break even.

25

step-by-step explanation:

step- i d k and i d c : )

you: : 0

bye

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.