A volleyball team is washing cars as a fundraiser. They can wash 3 cars in one hour. According to the double number line, which of the following is NOT true? They are washing cars at a rate of 3 cars per hour. They can wash 9 cars in 3 hours. They can wash 2 cars in 3 hours. It will take 5 hours to wash 15 cars.

They can wash 2 cars in 3 hours would be the not true statement.

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle