Answer: 
Step-by-step explanation:





3x(8r-1) x (4r+2s)
3x7r x (4r+2s)
21r x (4r+2s)
Answer:
x = ± 13
Step-by-step explanation:
Given
x² = 169 ( take the square root of both sides )
x = ±
= ± 13
Since 13 × 13 = 169 and - 13× - 13 = 169
Answer:
5
Step-by-step explanation:
Let's call the length AD y.

Hope this helps!
Answer:no the -2/3 should be before -1/5
Step-by-step explanation: