For the explicit definition, an=1+7(n-1), what is the recursive definition​?​

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Are the corresponding angles congruent? explain why or why not.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab