Find the difference of 56/100 and 23/100

Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 56 m and length of one straight edge 130 m. what is the perimeter of the inside of the track? (π = 3.14) 260.00 m 347.92 m 372.00 m 435.84 m

Which of the following is not a subset of {1,2,3}?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?