Arectangle has a length of 10ft. and a width of 6ft. whats the perimeter

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

What ia the sum if the first 7 terms of the geometric series

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.