Sum of twenty. Use the numbers 0 - 9 so that each row and column sum is 20. Diagonals are not included.

Use set buikder notation to represent the following set: {, -2, -1, 0}

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

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?