Which of the following represent a linear inequality in open-sentence form? (select all that apply.)

2x + 8 = 10y
2x - 7y > 10
8 + x > 5
3 < 5

(40 points) i need some . an answer definition is appreciated as well.

Aphoto of a painting measured 13 x 17 inches the scale of the photo to the original painting is 1 inch to 3 inches. what is the size of this painting

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?