Estimate the product of 8.82 x 9.41 by rounding each factor to the nearest whole number.

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.)

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.