A school's music department charges $9 for an adult ticket to the spring show and $5 for a student ticket. The ticket sales for that show came to $11,400. Write an equation in Standard Form that models the situation

they charge the same amount at 20 minutes.

step-by-step explanation:

your answer is  

d.

196.5 m2

step-by-step explanation:

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)