Answer:
work is shown and pictured
the sales tax is $60.43
the total cost is $806.43
Step-by-step explanation:
36-16=20
20•2=40
Jill started off with 40 comic books
Hope this helps!
so we have 16=4(9-x) we calculate this equation
16=(4*9)_x*4
so 16=36-4x
wich means these 2 equations are equivalent