The ratio of yellow balloons to blue balloons is 8:12
Then there are 100 balloons. Making the equation, we are able to have:
8X + 12X = 1000
20x = 1000
X = 50.
Yellow balloons = 8x = 8 * 50 = 400 yellow balloons
Blue balloons = 12X = 12 * 50 = 600 blue balloons
So there are 400 yellows balloons.
0, there is no y-intecept.
If there was a y-intercept it would look like y=4x+6, and 6 would be the y-intercept.
Yes. It is a vertical shift up by 4 units.
A vertical shift will be up or down along the y-axis.
Volume of a sphere = (4/3)(pi)r^3
(4/3)(12.3)^3 = 2481.156 pi cm^3