Adult tickets to an amusement park are $8 and children's tickets cost $5. If a total of 19 adults and children spent $110 to get into the park, how many children went to the park?

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft

What is negative 3/9 times negative 2/8 ?