What is the mean of this set of average daily summer temperatures for a seven-day period for a certain city? (I selected A but it may be wrong, thats why im posting it here)

50

step-by-step explanation:

stop cheating

step-by-step explanation:

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2