Answer:
b=9,a=12
Step-by-step explanation:
I solved by substitution:
b = 3/4a ---> plug this into the other equation
a + b = 21 is now a + 3/4a = 21
Reduce: 7/4a = 21
a = 12
Now solve for b:
b=3/4a is now b=3/4(12)
b=9
35% Just move the decimal place forward two places. That's how i LEARNED IT
<em />
Don’t listen to get the links they are annoying
Answer:
Rhombus n square
Step-by-step explanation:
