Answer:
Step-by-step explanation:
RS ≡ MN
3x + 17 = 7x - 15
- 3x - 3x
17 = 4x - 15
+ 15 + 15
32 = 4x
4 4
8 = w
(-30 km/h) -(45 km/h) = -75 km/h . . . . . east is positive here
The velocity changed 75 km/h to the west.
50 x 0.04 = 2
$50 + $2 = $52
ANSWER- $52