Name a pair of similar triangles in each and explain why they are similar (for both questions)

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.