What is | a-4b | if a=7 and b=2?

If you answer right ill give brainliest, : )

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on

41/17 as a decimal rounded to the nearest hundredth