What digit repeats 3/9

What is the reflection image of (5,-3) across the line y = -x?

What is the value of the expression below? 148+(-6)| + |– 35= 7|

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? *