Answer:
as what I think it's 45. maybe
a = 170
Step-by-step explanation:
0.3a = 51
a = 51 : 0.3
a = 51 : 3/10
a = 51 x 10/3
a = 510/3
0.3x170 =
= 3/10x170
= 510/10
= 51