Apyrotechnician plans for two fireworks to explode together at the same height in the air. they travel at speeds shown at the right. firework b is launched 0.25 s before firework a. how many seconds after firework b launches will both fireworks explode?
firework a : 360ft\s
firework b : 300ft\s

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.