After two hours, 1/16 of the initial amount of a certain radioactive isotope remains undecayed. the half-life of the isotope is:

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

temp rises, and expansion