Simplify

3{10 + 7{15 - 6{10 - 4{15

3{10 - 3{15
3{15 - 3{10
3{30 - 3{20
3{20 - 3{30

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.