Answer:0.00011726
Step-by-step explanation:
D=dimes
q=quarters
if she has 12 coins then
12-d=q she has 12-d quarters
we dont know how much money she has unless we know d.
she could have 12 dimes and 0 quarters or 11 dimes and 1 quarter etc. we need more information to solve.
It would be: 289*24/100 = 6936/100 = 69.36
