A density graph for all the possible speeds between 0 mph and 80 mph is in the shape of a triangle. What is the height of the triangle?

A. 0.003125

B. 0.00625

C. 0.025

D. 0.0125

Can someone me out here number 4 plz

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.