Keep 6/15 the same and change Division sign into a multiplication sign and flip 4/21 and that will become 21/4.

126/60=21/10 and 21/10 as a mixed number is 2 1/10 so your answer is 2 1/10. Hoped I helped. :)
Answer:
5859375
Step-by-step explanation:
These are the terms of a geometric sequence with n th term
=

where r is the common ratio and
the first term
here r =
=
=
= 5 and
= 3, hence
= 3 ×
= 5859375
(-2,15)(9,-18)
slope = (-18 - 15) / (9 - (-2) = -33/11 = -3
There can be 2 answers to this question....
point slope form : y - y1 = m(x - x1)
(1) using points (-2,15)...
y - 15 = -3(x + 2) <== one possible answer
(2) using points (9,-18)
y + 18 = -3(x - 9) <== another possible answer
AAS Theorem is what should be used I believe. The Sides are congruent and so are the 90 degree angles, the angles that are next to eachother on the left are evenly split by the transverse theorem. So AAS states that two angles and a side being equivelant on both triangles makes them congruent.
Answer:
1: 80 (Vertical angles congruent)
2: 70 (Vertical angles congruent)
3:
4: 110 (Straight angle w/ angle 2, 180-70 {known variable})
5: 90 (Right angle)
6: 90 (Right angle)
7: 20 (180-90-70 (unmarked angle opposite 4)
9:
10: