chris is comparing two music downloading websites. the first site charges a $15 membership fee and then charges $0.50 per song. the second website has no membership fee, but they charge $0.80 per song. how many songs will chris have to download before the two sites charge the same amount

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.