Kathy Is 12 years old and Ben is 16 years old. How many years ago was Ben three times Older than Kathy?

Sienna planned a trapezoid-shaped garden, as shown in the drawing below. she decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft. which expression finds the change in the scale factor?

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

3x + 4y = 5 x- 3y = -7 solve by substitution