Write the first four terms of each sequence. (1) f(1)=7, f(n)=f(n-1)+15 (2) f(1)=2, f(n) =f(n-1) -7 (3) f(1)=30, f(n) =2•f(n-1) -50

What is the least common multiple of 16 and 3?

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Give me the equations of two lines that have the same slope but are not parallel.