A 2-in. diameter cylinder is floating vertically in seawater with 75% of its volume submerged. If the specific gravity of seawater is 1.03, the specific weight (lb/cu ft) of the cylinder is most nearly:

a) 48.2 lb/ft3
b) 64.2 lb/ft3
c) 83.2 lb/ft3
d) 85.7 lb/ft3

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

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