175 - 54 = 121
175% of 54= 175% * 54= 1.75 * 54= 94.5
75
0.3086
54
45
400 - 225 = 175
175% is the same as 1 and 3/4. As 1/4 of 72 = 18 then 3/4 must equal 54. As 72 + 54 = 126 the answer is that 175% of 72 is 126.
You subtract 54 from the mass number.
the answer is -4.
You subtract 54 from the mass number.
0.3086
54 - 6 / 2 + 648/8 = 6