A baseball hat for $22.90 at 5% sales tax
22.90*1.05=24.045sales tax is 5% added to 100% of the original cost making the actaul cost including tax $24.045
convert 5% to decimal = .05multiply22.90 x .05= 1.145
sales tax is $1.15
$22.90 = $1.15= $ 24.05
hat will cost $ 24.05
hope this helps
