Answer:
Step-by-step explanation:

Scale factor:
1:2
Answer:
undefined
Step-by-step explanation:
Answer:
15 and 5
Step-by-step explanation:
15 x 5 = 75.
15 + 5 = 20, 20 / 2 = 10. Hope this helps :)
Answer:
-7
Step-by-step explanation:
7 - (-4)= 11
+
3(-6)= -18
=-7