Evaluate 20.003+[(30.1+5.75)-6.87

48.983.

Step-by-step explanation:

(The parentheses are not balanced so I am assuming that there is a square parentheses at the end of the given expression).

Using order of operations (PEMDAS):

20.003 + [(30.1 + 5.75) - 6.87]     Work out the inner parentheses first:

= 20.003 + [35.85 - 6.87]             Now the outer parentheses:

= 20.003 + 28.98

= 48.983.

48.983

Step-by-step explanation:

according to BODMAS rule

bracket first

20.003 +(35.85) - 6.87

then addition

(20.003+45.85)_6.87

(55.853) - 6.87

at last subtraction

(55.853_6.87)

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4