4 years ago

Please help

Mathematics

1 answer:

lora16 [44]4 years ago

4 0

Answer:

1) 25

2) (5+4)×2+6-(2×2)-1

Step-by-step explanation:

1) do exponents: 6×7-9×9+64,

do multiplication: 42-81+64,

do add & subtract: 25

2) (5+4)×2+6-(2×2)-1

(9)×2+6-(4)-1

18+6-4-1

=19

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