otisha designs and prints custom notebooks for schools. she charges a one-time design fee of $15 and $2 for each notebook ordered. the equation y = 2x + 15, graohed below, represents the total cost otisha charges for a school notebook order

es una operación aritmética.

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no se que fórmula requiera, pero te puedo decir que es adición. deberías revisar porque tema vas y ver que fórmulas puedes aplicar.

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the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

i use my brain for prombles like this maybe you could try it

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i suppose it should be (y=2x-5)

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