Use PEMDAS to figure out the order of operations:
Parentheses
Exponents
Multiplication/
Division
Addition/
Subtraction
Solve (-4 + -6) first, as this is in parentheses:


Solve 5.3 * -10 next, as this is multiplication:


Now we can solve the equation:

The answer is 63.
Answer:
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Step-by-step explanation:
without the "_"
Part A Equation and Solve: (16.2x7) Answer: 113.4
Part B Ribbon: 113.4 x4
Part C Combining: 340.2