On a math test it took kiera 30 minutes to do 6 problems. heath finish 18 problems in 40 minutes. did the students work at the same rate? explain your reasoning

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.