Answer:
5730 = 5.73×10³
0.23 = 2.3×10‐¹
0.000231 = 2.31×10-⁴
7150000 = 7.15×10⁶
500.8 = 5.008×10²
(I can only answer the first one)
y = 130
x = 30
Step-by-step explanation:
