What is the numerical coefficient of the variable?
$-2.58t^4$−2.58t4
Consider the expression $x+6$x+6.
Which of the following best describes an algebraic expression?
Choose the best answer for each of the questions below.
Simplify/evaluate expressions involving properties/laws of exponents, roots, and/or absolute values to solve problems. Note: Exponents should be integers from –10 to 10.