Half of a substance will decay after 10 hours. If 150 g of a substance is present inititially, how much would be left after 3 days? (half-life decay)

Definition: es. this is a disadvantage or weak point that makes someone or something less effective.

Need asap. solve for the following inequality

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given