• Which statements are true about the expression x + 7? Choose ALL that apply. ) The letter x is a variable.
1) The number 7 is a variable.
-)) The letter is a constant.
)) The number 7 is a constant.
)) The letter 2 is a term.
)) The number 7 is a term.

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Landon wrote that 3−2.6=4. which statement about his answer is true?