$25 - $4 = $21
You spent $21 on 3 boxes of granola bars.
3 boxes = $21
1 box = $21 ÷ 3 = $7
One box of granola bar costs $7.
Line b is the answer, hope this helped
Answer:
See below
Step-by-step explanation:
In the second step there should be (1 - cot x) instead of (1 + cot x)
(1 + tan x) [1 + cot(-x)]
= (1 + tan x) (1 - cot x)
= 1 - cot x + tan x - tan x cot x
= 1 - cot x + tan x - 1
= tan x - cot x
Write what??
<em>n single power??</em>
