Aman invests a certain amount of money at 2% interest and $800 more than that amount in another account at 4% interest. at the end of one year he earned $112 in interest. how much money was invested in each account?
which of the following equations could be used to solve the problem?
a.)0.02x + 0.04(800) = 112
b.)0.02x + 0.04(x + 800) = 112
c.)0.04x + 0.02(x + 800) = 112

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?

This stem-and-leaf plot represents the heights of the students on ralph’s basketball team. one student’s height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.