Alfie wants to buy a computer. The price of a basic computer is £400 The price of a better computer is £490 Alfie thinks that the better computer will cost him 20% more than the basic computer. Show whether or not he is correct.

He is not correct

Step-by-step explanation:

Well to determine whether he is correct find 20% of the basic computer computer and add it to its price to determine if it equals 490 euros

20% * 400 = 80

Now add 80 to 400 to see if it equals 490

400 + 80 = 480

480 ≠ 490  

He is wrong

282 6/7 cm^2

step-by-step explanation:

1/4 because there is 4 grades.