Will give what does(triangle) y mean? select the correct response: a-the change in y b-how many y values are on a line c-what y is when x is another number d-the y-intercept

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?