How many ways are there to select seven math help websites from a list that contains eleven different websites

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be