Answer:
Step-by-step explanation:
The first box should be 20.
The second box should be 40
The third box should be .2
The fourth box should be .6
3x - 9x = -21 + 4
-6x = -17
x = -17/-6
x = 17/6
To find a fraction of an amount you divide by the denominator and times by the numerator (divide by the bottom times by the top)
£1 divided by 10 is 10 pence
10 pence times 1 is 10 pence
£1 divided by 10 is 10 pence
10 pence times 3 is 30 pence
50 pence divided by 5 is 10 pence
10 pence times 1 is 10 pence
£1 divided by 2 is 50 pence
50 pence timed 1 is 50 pence
Its Easy U just had to break it down.
Option-D=21 is correct.