Becky is using the expression 2z + 3 to represent the number of chairs in her classroom. There are twice as many chairs as tables, and there are three extra chairs in the back. What does z represent?

The table shows the number of stickers of various types in Christy's new sticker book. Chrissy and her six friends have altogether Type of sticker: flower 32 smiley faces 21 hearts 39

Jennifer is 6 years older than her brother. Two years ago she was four times as old as her brother. What equation describes this problem?

Solve for x in the equation x2-12x+59=0.

For all functions of the form f (x) = ax2 + bx + c, which is true when b = 0? The graph will always have zero x-intercepts. The function will always have a minimum. The y-intercept will always be the vertex.

What two numbers add to 4 and multiply to 1

15/16 days is 1/16 groups of what size

If 40% of a radioactive substance remains after 20 years, what is the half-life of the substance?

Which expression represents a quadratic expression in complete factored form? A. (x - 2) + (x+3) OB. (2x+4) (x+3) OC (x - 1) (3x - 9 OD. (x+4) (x-3)

Which equation could be used to find m∠J in △JKL? x = cos-1 x = cos-1 x = sin-1 x = sin-1

Can you guys give me step by step on how to solve this ... ik the answer. "infinitely many solutions" I need the STEPS 5 + x - 12 = x - 7