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Simplify using the Order of Operations.

a) (22 ÷ 2 – 2.5) + (4 – 6 + 6) _________________________________

b) (3 x 5^2 + 15) – (5 - 2^2) __________________________________

c) -2 (1 x 4 – 2 ÷ 2) + (6 + 2 – 3) _______________________________

d) 6 x 4^2 ÷ 12 + 72 ÷ 8 – 9 ___________________________________

Help please... It's complicated for me so I need the workout too. Thank you.

Respuesta :

dabiwife515

Answer:

first we'll have to do it in order which is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)

Step-by-step explanation:

(22÷2-2.5)+(4-6+6)

(11-2.5)+(4-6+6)

(8.5)+(4)

= 12.5

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