Answer: 18
Step-by-step explanation: You would substitute x for 3 in the expression. This would equal 21-3, or 18 when simplified
Answer: £485
Step-by-step explanation: Given that the rate is $3.20 to £1.
Exchange of $1,600 will be
1600/3.20 = £500
With commission on 3%
3/100 × 500 = 15
Take away £15 from £500
500 - 15 = 485
2.8 hours because 3.5 divided by 1.25 is 2.8
Divide 6 by 1/3. I don't know what you are asking.