On Tuesday Emily bought four posters, On Wednesday half of all the posters that
she had were destroyed. On Thursday
there were only 10 left. How many did
she have on Monday?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.