Concert time
the composites are playing at a sold-out concert at the gopherdome, which holds 40,000 people. the concert starts at 8: 00 p. m. solve these problems and record your solutions, using clear and concise notation.

1 at 7: 00 p. m., 28,175 people are at the concert. how many people have not arrived yet?

2

a. by 7: 30 p. m., 9,590 more people have arrived. how many people are at the concert now?

b. how many people have not arrived yet?

3 by 8: 00 p. m., all but 1,642 people are at the concert. how many people are at the concert now?