12s + 5 = 77
12s = 77 - 5 = 72
s = 72/12
s = 6 ...//
Ans = C ... 12x + 5 = 77 ...
Answer: 34,104
Step-by-step explanation:
i got the question right
Hello!
When you dividing exponents with the same base you can subtract the exponents
7 - 2 = 5
The answer is

Hope this helps!
1. 0.3z-13-4z+6.7
0.3-4z=-3.7z
-13+6.7=-6.3
simplified- -3.7z-6.3
2. 3x+1+6x-2+3x+1+6x-2= 18x-2
3. don’t know this one
4. 5(t-1.25) = 8.75
5t-6.25=8.75
5t=8.75+6.25
5t=15.00
t=3