Uhave 12 dogs all but 8 dogs died how many dogs are still alive

if i'm not wrong, i would say that the third angle has (72) because the three sides of all triangles have 180 degrees and if we subtract 180 - 62 - 40 = (72) / but i'm not sure about 40 yd.

3.07*10^-4

move the decimal 4 places to the left

.000307