Your teacher lives 3.5 miles from the school. It takes your teacher 9 minutes (.15 h) to drive to work. What is the teacher’s speed in miles per hour (mph)? Round your answer to the nearest whole number.

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.

How do you write a paragraph proof to prove that the corresponding angles shown are congruent