How would we multiply the numbers 13680347,35702369 and 25692359 with 9 mentally? What is the pattern that emerges.

In the rectangle below ac=30 units what is de

Find the root(s) of f (x) = (x- 6)2(x + 2)2.

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.