I would think a reflection across the x-axis but I’m not sure
To write 3000 as a fraction you have to write 3000 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
3000 = 3000/1 = 30000/10
And finally we have:
3000 as a fraction equals 30000/10
She probably subtracted 8 from 9. 9/8 and 1 1/8 are equal
42 - -84=-42
Hope this helps :)
