Athermometer at the park shows a reading of 86° fahrenheit.
if the temperature goes over 32° celsius, tom must have an extra break.
he uses this formula to calculate the temperature in °c.
f = 1.8c + 32
will tom get an extra break?
yes
no

step-by-step explanation:

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)