Ineed and don't say idk to get points its not right

y = x + 2

y = 2x

y = x + 5

y = 0.5x

Step-by-step explanation:

For the first three, I don't know how to explain this to you. This is very simple math, I am certain that you would have been able to do this in two minutes if you applied yourself. It would be much faster if you did the work yourself and only used for things that you truly don't understand.

For the fourth answer, consider:

x is miles per 60 minutes.

y is miles per 30 minutes.

30 is half of 60, or 0.5 times 60.

Therefore, y will be equal to 0.5 times x.

y = 0.5x.

answer are

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a