Solve the proportional equation b/10=3/5

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Find the solution on the interval [0, 2pi)

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.