Answer:
27
Step-by-step explanation:
2x+2=52
2x=50
x=25
x+2=27
Answer:
It's linear
Step-by-step explanation:
Linear equations have no exponents higher than a 1, which is the case for this equation cause if there's no exponent it's cause it's just a 1. Non-linear has a exponent higher than a 1, ex. 
Answer: perpendicular lines
Step-by-step explanation:
look up "Two straight lines that intersect at a right angle"
30kx - 6kx = 8
24kx = 8 /(÷8)
3kx = 1
x = 1/3k
Answer:
1. Option c
2. Option d
Step-by-step explanation:
This type of survey is includes a sample made up of voluntary responses. People only choose to or do not choose to respond.
This type of sampling method is most of the time unbelievable because generally only people with strong opinions about this particular questions will respond and it is usually towards the same direction as the question and this might not reflect the opinion of the whole population making the survey biased.
