<span>3(a+(6x)y) was clearly multiplied out as seen by the 3a and 18xy, so the distributive property was used there. In addition, the commutative and associative properties state that you can rearrange sums, so those were used too </span><span />
Answer:
3/2
Step-by-step explanation:
-3/8÷-1/4
=-3/8×-4 (Reciprocal)
=1.5
<span>It would just be 4.15 times 7 which is </span>29.05
The second condition tells you that

is half the size of

, so

, which could be rewritten in several ways. In standard form, that would be

.