Answer:
$42
Step-by-step explanation:
This is an example of a percentage decrease.
To work out the percentage decrease you would first need to convert the percentage of 25% into a decimal. You can do this by dividing the percentage of 25 by 100, this gives you 0.25. This is because percentages are out of 100.
The next step is to minus 0.25 from 1, this gives you 0.75. This is because we are working out the percentage decrease.
To work out the discounted price you would multiply the amount of $56 by 0.75, this gives you $42.
1) Divide 25 by 100.

2) Minus 0.25 from 1.

3) Multiply $56 by 0.75.
Probably $20 dollars because depending on how much the item cost 20% could only be worth $5 for example 20% off of an item that cost $60 is only $12
Answer: 54
Step-by-step explanation:
Well, divide 300 by 100, which gets you 3. So 3 feet of book shelves = 1%
So 3x18=54
Answer:
$787
Step-by-step explanation:
In terms of interest
To find the multiplier using '7% more' continues as follows
100% + 7% = 107%
107/100 = 1.07 (multiplier)
Add the ten years as a power to the multiplier
1.07^10
And multiply this by $400
400 x 1.07^10 = 786.860542916
To the nearest dollar = $787