18/21 is the same as 6/7 when it is reduced by 3
so yes, they are equivalent
The Answer is 10.
2(3)+ 4
6+4
=10
Step-by-step explanation:
2 2 4
_ x _ = _
10 1 10
2 3 6
_ x _ = _
10 1 10
2 4 8
_ x _ = _
10 1 10
2 5 10
_ x _ = _
10 1 10
The amount of discount is is 35.1