Simplify the following expression. (73x + 52y) - (12x + 40y) a. 85x + 12y b. 61x + 92y c. 85x + 92y d. 61x + 12y

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip

Mr. zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?