Are the following relations, functions, yes or no? 1. { (1, 4), (2, 5), (3, 6), (1, 6)} 2. { (1, 3), (2, 3), (4, 3), (5, 3)} 3. {(1, 1), (2, 1), (4, 5), (5, 12), (2, 2)}
Plz help i will give brainlest and alot of points.

at home andrea has 1 2/3 kilograms of rice

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

the answer is

d.

5.3066 m2

step-by-step explanation:

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.