Which of the following types of models could be used to represent a cell? a. idea model
b. physical model
c. computer model
d. all of the above

to treat tumors in the body

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

there are no components of a physical goal mentioned on the list of choices that you've provided.