Abigail collected more, she collected 87.5 lb
they collected 107.5 pounds together
15p+15p+25p=30p+25p=55p
it’s the second one..................
35×69=35*69
35*69=2415
hopes this helps
Answer:
f(x) = sec x. tan x
⇔ f(x) = 1/cosx . cosx/sinx
⇔ f(x) = sin x
+) when f(x) is increasing => sin x increases
=> x will increase
+) f(x) is decreasing => x will decrease
+) f(x) is concave up => x ∈ (-pi/2; 0)
+) f(x) concave down => x ∈ (0; pi/2)
Step-by-step explanation:
