The aorta pumps blood away from the heart at about 40 cm/s and has a radius of about 1.0 cm. it then branches into many capillaries, each with a radius of about 5×10−4 cm carrying blood at a speed of 0.10 cm/s. how many capillaries are there?
a. 1.6×109
b. 16
c. 8.0×105
d. 1.6×105

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.