Which pair of angles is supplementary?

1.Angles 3 and 7
2.Angles 2 and 5
3. Angles 5 and 8
4.Angles 1 and 3

Write 17/20 as a decimal and as a percent.

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?

Suppose 38 lbs of coffee beans are required to produce 2 lbs of farmer's coffee. how many lbs of coffee beans are required to produce 309 lbs of farmer's coffee?