Which expression is equivalent to -5a + 12b - c + 5a - 7b + 12c after combining like terms?

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

Is the point (0, 8) on the x-axis or y-axis? how do you know?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.