The number of science books checked out at the school library is directly proportional to the number of students in physics class. if 42 books were checked out when 6 students were in physics class, how many books were checked out when there were 11 students in the class ?

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

S-7< 3 i need answering this problem someone asap answer

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.