I need help

5.88 x 10¹²     miles is a light year (given)

    multiply this by 8.5

= 49.98 x 10¹²

~~ 5.0 x10¹³  miles (rounded)

 

 

 

 

37.5 x 10⁶   + 7.1 x 10⁶  =   44.6 x 10⁶ = 4.46 x 10⁷