Answer:
Wednesday
Step-by-step explanation:
Fridays temperature was -4
We want a temperature that is 9 degrees lower
-4 -9 = -13
Wednesday has a temperature of -13
Step-by-step explanation:

Whenever you divide any number with 10,100,1000,10000 ....
then move the decimal point of the given number toward left side as the number of zero in dividing number,
1.4/100
here in 100 there is 2 zeros , so we should shift the decimal 2 point left of 1.4
In order to answer any question, reasonable people use
the information they're given, together with what they know
about the situation.
You've given us no information, and we know nothing about
the situation, so we basically don't stand a chance.