The millions place is befor the second comma form left to right and fifty means tens place so skip to the left to times
Example:
←LEFT RIGHT→
tens place →50,000,000
↑
Millions
Answer:


Step-by-step explanation:
Given;
(a) y = tan(5t)

Solving for (a)
y = tan(5t)
let u = 5t
⇒y = tan(u)
du/dt = 5
dy/du = sec²u


Solving for b;
let u = 5 - v²
du/dv = -2v
let v = 5+ v²
dv/du = 2v


Solution I think I’m not 100% though:/
1) it costs

so is D
2) the amount of the discount is -30%

so is A
3) -0.3

so is B
4) Chad paid 0.7

so is C