Which expression and value represents 100 less than 3 times the sum of 18 and 2?
3 × (18 + 2) – 100; –44
3 × (18 + 2) – 100; –40
100 – 3 × (18 + 2); 40
100 – 3 × (18 + 2); 48

The point of an exponent is to show how many times something is multiplied together.  Since it is multiplied twice, the answer is 100^{2}

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1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i