33] You have long hair, you should: a
Tuck it behind your ears.
b) Pull it back into a pony tail so that it is up out of the
way.
c) Don't worry about it, most labs aren't dangerous.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000