Question

$85) {2 {1 - \times }^{?} }^{?} \div 21$
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Answer 1

Answer:

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Answer 2

Answer:

The term sexually transmitted disease (STD) is used to refer to a condition passed from one person to another through sexual contact. You can contract an STD by having unprotected vaginal, anal, or oral sex with someone who has the STD.

Step-by-step explanation: