Answer:

Step-by-step explanation:

+8n +8n

Answer:
k = 10.5
Step-by-step explanation:
8/7 = 12/k
Using cross products
8k = 7*12
8k = 84
Divide each side by 8
8k/8 = 84/8
k = 10.5
Answer:
SSS
Step-by-step explanation:
bc all the sides are congruent.
Answer: 4.234, 4.232, 4.228, 4.225
Step-by-step explanation:
When we have numbers higher than five we round up and when we have numbers below find we round down. When we have a number 5 we round up as well.