Kim purchased white vases red faces and flowers great centerpieces for an event the flowers cost a total of $309 and each face cost $10 if w and r represent the number of white and red vases purchased respectfully which of the following expressions represents the total cost of the centerpieces

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

idkidkdidkdkdidkx

step-by-step explanation:

nndncnd cnn

snddnd

answer: 1+1

step-by-step explanation: 1+1 is at least 2

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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