Answer:
60% Hope this helped! :)
Step-by-step explanation:
Y = kx ⇒ k = y/x = 2/(-3) = -2/3
Answer: k = -2/3
Take into account, that in general, a cosine function of amplitude A, period T and vertical translation b, can be written as follow:

In the given case, you have:
A = 4
T = 3π/4
b = -3
By replacing you obtain:

Hence, the answer is:
f(x) = 4cos(8/3 x) - 3
The sales tax is 2$ Hope this is the answer you're looking for.
Answer:
A. 1.4 / 0.2 = 7
Step-by-step explanation:
Choices A and B are the only true mathematical statements. Of those, choice A seems to best match the model, where each small square represents 0.01 units.