Hi, yes ive been struggling with like terms.
Answer:

Step-by-step explanation:
Given

Required
The period
A sine function is represented as:

Where

By comparing:
and 

So, we have:


Hence, the period of the function is 
The first one A 7/2
You can just round up 6.75 -> 7 and 1.67->2
Answer:
1: 149$
2: 70 trees
3: 60-35 = 25 Minutes
4: 25 Minutes
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
to find the slope from to points you can follow this equation
m=y2-y1 / x2-x1
so plug in the points
1-3/ 1-0
-2/1
-2