Answer:
3.186 x 10^8
Step-by-step explanation:
3.2× 10^8 = 320,000,000
1.4 × 10^6 = 1,400,000
320,000,000 - 1,400,000 = 318,600,000
318,600,000 = 3.186 x 10^8
- you get to the power of eight, by counting the amount of spaces the decimal moved over (moving to the left increase, but right decreases)
Answer:
Step-by-step explanation:
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<Jayla>
First add like terms in this case 1+7=8. Then then divide. 2x/8= 4. X=4
The third equation is the correct one. After 100 years, about 115 grams will remain.