Which two expressions are equivalent? A. (18 ÷ y) + 10 and 10 + (y ÷ 18)

B. (10 - 6) ÷ y and 10 - (6 ÷ y)

C. 4 + (3 ⋅ y) and (4 + 3) ⋅ y

D. 12 - (y ⋅ 2) and 12 - (2 ⋅ y)

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)