Answer:
Step-by-step explanation:
Now £400
£400=75%, right? (100%-25%=75%)
£400 x 1.25% (original value with 25% more to make it back up to 100 percent)
£400 x 1.25%=£500
1600
Do 400 ÷ 0.25 = 1600
0.25 because of the discount
Check by doing 1600 X 0.25 and it should be 400 which it is
b=11
4(b+24)=(12b+8)
4b+96=12b+8
-4. -4
96=8b+8
-8. -8
88=8b
88÷8=11