Phân tích cơ sở toán học của các kiến thức về tập hợp số nguyên

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

You use math in day-to-day routines when grocery shopping, going to the bank or mall, and while cooking. how do you imagine you will use math in your healthcare career?