Jo. Quad. ABCD -Quad. A'B'C'D
А A
21
B
А A
14
B в
8
Х
근
y T
С C
a) Find the scale factor
30
b) Fmda
y
e) Find y
ge
=
d) Find z.
e) Find the ratio of the perimeters:
soft

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Can someone explain to me how to do

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.