One multivitamin tablet contains 12.5mg.
Therefore, 40 tablets will contain
[tex]40\times12.5=500[/tex]40 tablets will contain 500mg.
In grams:
By conversion,
[tex]1g=1000mg[/tex]Hence, 500mg can be converted as
[tex]\frac{500}{1000}=0.5[/tex]Hence, there are 0.5g of calcium in