8ths are divided by 12.5 so 3 * 12.5 is 37.5
10ths are divided by 10 so 4 * 10 is 40
3/8 is < / = 4/10
7) .5+78.2=287 you subtract 78.2 from 287 and get 208.8 then you divide that by .5 and get 417.6
x = 17.6
Left) 4×pi-2×pi/3=10×pi/3 (rad)
720-120=600⁰
Right) 2×pi (rad)
360⁰
I hope u can understand this, let me know if anything is unclear
