Given triangle abc with coordinates a(−4, 4), b(−4, 1), and c(−6, 0), and its image a′b′c′ with a′(0, 0), b′(−3, 0), and c′(−4, −2), find the line of reflection.
the line of reflection is at y=

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?