The point R is halfway between the integers on the number line below and represents the number . (Use the hyphen for negative numbers and write the answer as a decimal, such as -6.4). The R is between - 4 and -3

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1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches. approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.