Answer:
a = 5
Step-by-step explanation:
a/4 = 15/12
We can use cross products to solve
a* 12 = 4*15
12a = 60
Divide each side by 12
12a/12 = 60/12
a =5
the answer is
15/(3+d)
Solution : 6.79 x 10^4
I remember doing this one and its c
