PLS HELP!

Please ignore all working out and writting on page. I need help with question 9b). If you have any question, please ask as a COMMENT not an answer because people won't be able to answer

Thanks!

15.5%

Step-by-step explanation:

Subtract the original amount from the new amount to determine the difference. Then divide the difference by the original amount to get the decimal version of the changed percentage.

$161,700 (increased amount) - $140,000 (original amount) = $21,700 (difference)

$21,700 / $140,000 = 0.155 or 15.5%

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.