Amap scale is 1 cm : 50 km. two cities are 3.8 cm apart. how many kilometers is it from one city to another?

When you answer this can you explain

What are the solutions of the following system? y=-2x^2 y=x-2

Th perimeter of a rectangular garden is 150 feet. the length is 50 feet longer than the width, w. which equation could be used to calculate the width of the garden? a.) 2w+ 2(w-50) =150 b.) 2w+50 + 2w =150 c.) 2(w+50) + w =150 d.) 2w+ 2(w + 50) = 150 need asap. will give brainliest !