Jenny started with $4 in her piggy bank and earns an allowance of $3 every 2 days. Mika had saved $18 in his piggy bank from babysitting but he spends $2 a day to buy a large bag of chips on his way home from school. When will Jenny and Mika have the same amount of money?

The chart below shows the distribution of weeds in yard

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?

How can you construct perpendicular lines and prove theorems about perpendicular lines