For the first one, 2/5 is the constant rate of proportionality because you are using it in a y=kx equation.
Answer:
25.8 pounds
Step-by-step explanation:
3 x 8.6 = 25.8
Answer: a = 36 and b = 9
Explanation:
(6x-3)(6x+3)
= 36x² - 18x - 18x - 9
= 36x² - 9
(6x-3)(6x+3) = ax² - b
36x² - 9 = ax² - b
a = 36 and b = 9
Hope it helps!