DE is parallel to BC of AABC. AADE is similar to A ABC. What is the length of BC and EC ? Need answer please

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

10x − 5y + 14 = 0 whats the answer pls

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13