👉🏼Find the size of angle DFE below:

👈🏼Find the area of the above triangle

👆🏼Solve x^{2} – 10x + 16 = 0

👇🏼A bag contains 9 sweets, 5 of which are blue and 4 of which are red. Masha randomly selects three sweets. What is the probability that they aren’t all the same colour? *(thanks to Anastasiya F for editing this question)*

🖐🏼Simplify