Rounding it off to the nearest tenth means rounding it off to the first decimal place . so the answer is 6.8
Answer:x<−8
Step-by-step explanation:
4.

<u>n | 1 | 2 | 3 | 4 | 5 | 6 |</u>
f(n)| -20 | -17.5 | -15 |-12.5| -10 | -7.5 |
First term: -20 Common Difference: 2.5
Explicit Rule:
Recursive Rule: 
5.

<u>n | 1 | 2 | 3 | 4 | 5 | 6 |</u>
f(n)| 123 | 131 | 139 | 147 | 155 | 163 |
First term: 123 Common Difference: 8
Explicit Rule:
Recursive Rule: 
He should draw six faces, since there are six faces on a rectangle.