You use the order of operations and divide first, 16 by 4 which is 4, then you go on to add, 10+4=14+5+9=28 that is your answer. Sorry if I got it wrong but I am pretty sure I got it right
Divide both 1 yard and 0.914 meters by 1. 1x = 0.914y Now, since you want 1 meter = "variable" 1 meter times 1 yard divided by 0.914 meters. 1 meter = 1.094 yards
9.This is because it goes through the whole circle passing through the centre point. at the full width The rest are pretty easy. I'm sure you can manage. Good luck!