help please Business Mathematics grade 12

Answer:
1) 42.5 , 4250%
2) 64/5 , 12.8
3) 8/5 , 160%
4) 9.4 , 940%
5) 2 , 200%
6) 23.25 , 2325%
7) 1/4 , 25%
8) 87/100 , 0.87
9) 0.9 , 90%
10) 18/25 , 72%
Step-by-step explanation:
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