What of the following is an arithmetic sequence?
a. 800, 20p, 50,
b. 1, 3, 9, 27,
c. 1, 0, 1, 0, 1, 0,
d. 10, 7, 4, 1, -2,

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.