A line is a straight one-dimensional figure having no thickness and extending infinitely in both directions.
It's B, I'm doing my online school assignment and this was the correct answer.
Answer:
49π
Step-by-step explanation:
πr^2
π*7^2
49π
Answer:

Step-by-step explanation:
It's like solving any equation, except we have letters instead of numbers .
k = 3tm + rs {subtract rs from both sides}
k - rs = 3tm {divide both sides by (3m)}
{swap sides}
m≠0
{m must be ≠0 because you cannot divide by 0. There is no t for m=0}