Simplifying Rational Number Expressions (with all four operations)

18 4/3+9-3+1 1/4

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

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? *

Rounded to the nearest tenth, what is the value of x