Answer:
41.8
Step-by-step explanation:
Try with the Pythagorean theorem
With the QRO triangle. There is a 90° angle.
4=4
x = 0
10(x-2) = -20
10x - 20 = -20
10x = 0
Answer: A:119
420 * 0.85 is 357 and 357 * 1/3 is 119