F=1.8C+32
We are given C=-20 degrees
plugging this value in the given equation
F=1.8(-20)+32
F=-36+32=-4
F=-4 degree fahrenheit
I believe that the last one is correct because it is not a curve but a straight line, and it can't be the second one because the y value does not decrease as x increases
Number of red face cards =6
Total cards = 52
Therefore, probability =6/52 =3/26
=3:26
5+3a = 3-2a
So
5a = -2
a=-2/5=-0.4
