**Answer:**

A. is 0

B. is -30

C. is 0

**Step-by-step explanation:**

Hope this helps!

**Answer:**

-4.2

**Step-by-step explanation:**

0.5 - 4.7= -4.2

**Answer:**

.42 is an answer that will work.

**Answer:**

Parallel

**Step-by-step explanation:**

Parallel lines have the same slope but different y-intercepts. If you multiply the top equation by 2, you get:

2(12x + 4y = 16)

24x + 8y = 32

This shows that both lines have the same slope, but then you find the y-intercepts, they are different:

1st equation y-int = 4

2nd equation y-int = 9/2 or 4.5

Cost of airplane toy = $4.84

let x be the cost of the toy car

cost of airplane toy is 4 times the cost of toy car; it means

4x = $4.84

x = 4.84 / 4

x = 1.21

Thus, the cost of toy car is $1.21.