Answer:
<u>51.2</u> is 40% of 128
Step-by-step explanation:
Answer:

Step-by-step explanation:
The reciprocal of a number is 1 / the number,
so the reciprocal of x is
.
Hope this helps, let me know if you have any questions! :)
Answer:
30
Step-by-step explanation:
if you take 3+6+9+12 you get 30
5a(b-c)=d. Here, we are trying to isolate the variable b.
Divide both sides by 5a: b-c=d/(5a)
Add c to both sides: b=