Amy rolls a number cube ten times and gets 3 four times! if she rolls the number cube 240 times, how many times should she get a 3 (hint: should her results be used, or the theoretical 20 40 80 96

Can someone explain to me how to do

To decrease an amount by 16% what single multiplier would you use

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