Answer:
-14
Step-by-step explanation:
substitute 4 for x
28(4) - 9 (2(4)+ 6)
multiply
112-9(8+6)
add numbers
112-9(14)
112-126
subtract
5 and 6
Consider perfect square numbers either side of 29
25 < 29 < 36, thus
< < , that is
5 < < 6
it says 8.193 ft
After 8 months they both will have 77 CD's