Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "times", "divided by", "equals". There is no symbol between 45 and 3.20.
45% of 320= 45% * 320= 0.45 * 320= 144
45.7143
10 x 45 = 450 8 x 45 = 360
17/45.
45 - 17 = 28
−45 + 17 = -28
17 times 45 = 765
45 x 17 = 765
17 = 765 / 45
23 - 45 + 17 = -5
45/(C + 17)
45 times 17.