What is the value of the expression 2/3 - 5/6 over 3/4

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.