heymath income tax assignment

1] a]3000+2500+2600×2=$10700[his total reliefs]
b] 40900-10700=$30200[his chargeable income]
c]$9000×2%=$180
$21200×5%=$1060
$30200 → $1240 [income tax ]

d]1240/30200=4.11%

2] 1] $3 000+$2 000+$2 000 ×2=$9000[his total reliefs for the year.]
2]$9 600+4000=$13600
13600-9000=$4600
$4600×12% =$552[his tax payable]

3]$3000+$2000+$1500×2=$8000
$40000-$8000=$32000
$10000 ×10%=$1000
$22000×15%=$3300
$32000 → $4300[hisincome tax]