(a) Which unit fraction 1/n for n ≤ 50 has the decimal expansion of the longest period?

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.

3xy cannot be combined with the others

2x, -5x and x are like terms

what are your