The graph shows the value of a business over time. Write the equation which models the value V (in dollars) of the business over time T (in years)?

Three times the sum of a number and seven is negative thirty-six. what is the number?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?