Answer
a) $5K$
b) $9^{\circ}F$
c) $9R$
Work Step by Step
Knowing that:
The change of $1^{\circ}C$ is identical to $1K$
The change of $1^{\circ}C$corresponds to $1.8^{\circ}F$
The change of $1^{\circ}F$ is identical to $1R$
a) $5*1K=5K$
b) $5*1.8^{\circ}F=9^{\circ}F$
c) $5*1.8R=9R$