Answer:
The rule of dilation is D₀,₄. It means dilation by scale factor 4 with center of dilation is origin. The length of OB' is 3 units. therefore, the answer is 3 units
Step-by-step explanation:
I'm not sure exactly what you mean, but I'm amusing what you mean. You can multiply the smaller number by a part of the bigger number. for instance, 45x5. You can multiply 5x5 and that =25, then mulitply 40x5=200. Then add 400+25=225. So, 45x5=225.
10 -3.5 and 10 -8.5 is the answer I think