Answer !

1.) johanna has s yards of string. for an art project, she can cut an equal number of pieces of string of each piece is 11/12 foot long. write an expression that represents the number of pieces she can cut.

2) a pair of pants normally cost p dollars. the pants are on sale for 15% off. write an expression to represent the sale price of the pants.

3) aiden is shopping for school supplies. he has $35 to spend on a calculator and notebooks. he will buy one calculator for $18. let n represent the cost of one notebook. write an expression to represent the number of notebooks aiden can buy with $35.

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.