Trigonomos spotted a tree across the river and marked the spot directly across from it. Then he walked to another point 101010 meters down the river and found that the angle between his side of the river and the line connecting him to the tree was 40, degrees. What is the width of the river?

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

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?

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza