Urgent!
using euler's formula ( f+v=e+2) find the number of faces.

vertices: 16
edges: 37
faces: ?

Given: ac and db are diameters. m∠3=

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?