45 is half of 90.
90
50% is one-half, half of 90 is 45 so your answer is 135.
one half is 45
Half of 90 is 45 (90 divided by 2)
90
90 ...
It is: 90
Half of 90 = 45
The half-life of strontium-90 is about 29 years. This means that it takes 29 years for half of the original amount of strontium-90 in a sample to decay into other elements.
6.5% of 90= 6.5% * 90= 0.065 * 90= 5.85
90 12.5% of 720 is 90