all 120 seats in a hall were filled for a concert. the tickets cost $10 for adults and $6 for students. the total proceeds were $980. how many adults attended the concert? how man students?

Hassan bought a package of tofu. the temperature of the tofu was 14° celsius when hassan put the package into the freezer. he left the tofu in the freezer until it reached –19° celsius. which expressions explain how to find the change in temperature, in degrees celsius, of the package of tofu? select three that apply.