Answer:
d=5 mark brainliest if satisfied
Step-by-step explanation:
Subtract 7.5 from both sides
2.5d=12.5
d=5
Answer:
just apply the formulas then see dummy
First we need to find x so 6x+8x+6x= 180
20x=180 and x= 9
So A= 6*9= 54
B= 8*9= 72
C= 6*9= 54
Answer:
12
Step-by-step explanation:
I think you have to use the product rule for counting- which is where you multiply the two numbers. I'm not sure if this is right but I hope I helped
