Please answer ASAP this is due tomorrow

What numbers are included in the set of integers? what numbers are not included?

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be