Answer:
m=4
Step-by-step explanation:
ABCD is 2.5x larger than QRST so you just divide the 10 by 2.5
4
Because the two trapezoids are similar, we need to find out what multiplied by 15 gets us to 6.
We would multiply it by 2/5, so 10 multiplied by 2/5 is 4.
