Plz help me I need help math

No. It is a reflection over the axis. If Triangle B was a rotation (which would most likely be of 180 degrees), Triangle B would just be flipped upside down, which wouldn’t match the picture shown. But as shown in the image, Triangle B looks the same as Triangle A, just reflected.

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post