Defination: in arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.
An arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.
Your x angle here is supplementary to the missing angle of the triangle, the "missing angle" of the triangle is the same as <B - which is 75 degrees. So; to solve x, 180-75=x
D, because if you apply a dilation of three to a line with a length of 6, you'd multiply the two, getting an answer of 18. You know to multiply since the scale factor is a number larger than 1