At a local university 54.3% of incoming first-year students have computers. if 3 students are selected at random, find the following probability. a) at least one has a computer
b) none have computers

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.