Can you post the figure please :)
The fourth term in an arithmetic sequence is 18 and the seventh term is 42. if the first term is a1, which is an equation for the nth term of this sequence?
1. an = 8n + 10
☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆ 2. an = 8n − 14
3. an = 16n + 10
4. an = 16n − 38
You can determine it because 10 minus 4 is 6. Since there is a 0 in 8.5 in the hundredths place, it is automatically ten (borrowing).