Please help find the answer of this question leaving the answer insure form 4x^2 - 4√3x^2 + 3 = 0
using completing the square method​

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

How many grams the dog will eat in 3 days?