Are the fractions 15/45 and 45/135 equivalent? why! ?

Apple pie is removed from 350 degree oven. temperature of the pie t minutes after being removed id given by the function t(t)=72+268e-0.068t

100 points, hi, i’m not sure what to do here, the data doesn’t seem to be quadratic .? can anyone me, in advance

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?