9514 1404 393
Answer:
(c) graph is a line through the origin
Step-by-step explanation:
The equation ...
y = kx
represents a proportional relationship between x and y. Its graph is a line through the origin. The value of k can be positive or negative. In this question, the value of k is 1/2.
If i read it right it would be 4*10^2
Answer:
C i think
Step-by-step explanation:
Step-by-step explanation:

The question does not seem complete, but I'll represent the statement mathematically and look for their ages each. This is because the worst they can ask for is their ages.
Let C stand for Courtney's age, A for Andrei's age, N for Natalie's age and S for Shari's age. From the question we can deduce the following:
C = 2A
C = N + 3
C = S/2
S - N = C + A
S = 2C, N = C - 3 and A = C/2, therefore we have
2C - (C - 3) = C + C/2
C + 3 = C + C/2
C/2 = 3 and C = 6
A = C/2
A= 6/2
A = 3
N = C - 3
N = 6 - 3
N = 3
S = 2C
S = 2 x 6
S = 12.
C = 6, A = 3, N = 3 and S = 12