Answer:
-3x - 7 is the furthest it can be simplified
Not sure if you are familiar with the quadratic equation, but see picture
Answer:
77.8
Step-by-step explanation:
76.0+1.8=77.8
The number 756 can be written as

, that is:

.
This means that 5 in the number 756 actually is 50.
We say that 5 is in the tens place, and its value is 50.
Answer: 50
P- Parenthesis
E- Exponents
M- Multiplication
D- Division
A- Addition
S - Subtraction