The tooth cure didn't work (see practice problem e). On the bright side, Mrs. Gargantua thinks a slightly altered version
of the same medicine might very well clear up her gooey
scalp. So now she is mixing a liquid containing 12% reactor
fuel with a liquid containing 32% reactor fuel to create a 4
ounce liquid containing 20% reactor fuel. How many ounces
of the 12% liquid must she use? Round your answer to the
nearest one decimal place (tenths).

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

6+6=12 so that just tells you what it is one half is 6 the next one is 6