Question

Tom was paid according to a salary grid with annual increases from year one to year ten. The sequence of salaries from years one to ten formed an arithmetic sequence. After year ten he reached his maximum salary. He earned $58 600 in the fifth year and $73 400 in the ninth year. If he worked for twelve years, the total amount that Tom earned was

Answer 1

Answer:

the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.

change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.

measurement of the focusing characteristics of an eye or eyes.