Answer:
216
Step-by-step explanation:
180 times .2 (20 percent in decimal form) = 36
36+180=216
B or c that’s feels the most likely to be it
Answer:
A
Step-by-step explanation:
I included the steps in the picture I attached. lmk if you need me to explain more
So the equation looks like this : 15*3x=78
subtract 15 from both sides: -15 -15
then divide by 3 from both sides
to isolate the variable: 3x=63
3/3x=63/3
x=21 (your mystery number is 21)