HELP PLEASE ASAP I WILL MARK BRAINLIEST Find the value of c that makes the trinomial x^2- 23x+c a perfect square. PLEASE SHOW WORK

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.