What is the means-to-mad ratio of the two data sets, expressed as a decimal?

data set mean mean absolute deviation (mad)
1 10.7 2.4
2 13.7 2.5

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

What are the domain and range of the function f(x)=2^x+1