Answer:
1
Step-by-step explanation:
the degree of 3x-6 is 1
Answer:
630 minutes
Step-by-step explanation:
.45 (percentage) multipled by the total number of minutes she has (1,400) equals 630.
200%
We find the difference, then divide that by the original. 12-4/4 = 8/4 = 2
Multiply by 100 to get the percentage, = 200%
Also, adding 4 would be a 100% increase, and adding 8 is twice that, so 200%.
Coal because but only in last decade as we humans mine and we only have so much of it