What is a expression that contains at least one variable

Which equation (s) represents a proportional relationship? A) y=7x^2 B) y=2+3x C) y=1/2x D) y = 5-x show work

Simplify the expression 8xy - (x+2xy) + 3x

Ba-3 what does a red flag with a diagonal white stripe mean?

Solve the equation, 2x + 1 = 3, for x. Which of the following properties of equality did you apply? Question 8 options: A) Subtraction and multiplication B) Addition and division C) Addition and multiplication D) Subtraction and division

What is the missing constant term in the perfect square that starts with x^2+10x?

Which integer represents 7 feet below sea level?

If you toss a coin 6 times and list the results (heads or tails) in order, how many different orders are possible?

A multiple choice test has ten questions each with four possible answers of which only one is the correct answer. what is the probability that sheer guess work yields 5 to 10 correct answers?

A right triangle has legs that are 15 feet and 25 feet long. What is the length of the hypotenuse?

What is the answer (10+66-4to the power of 2) : (3+3) in order of operations