Write the sentence as an equation. The product of -2 and -18 equals 36

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

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1