Answer
(a) The normal force the floor exerts on the crate has a magnitude of $980N$.
(b) The normal force the crate exerts on the person has magnitude of $637N$.
Work Step by Step
(a) Since the crate does not move, the normal force the floor exerts on the crate is equal with the weight of the crate and the person (since both of them exert force on the floor).
$$F_N=(m_{crate}+m_{person})g=(35+65)\times9.8=980N$$
(b) Again, since the person does not move, the net force equals $0$, or the normal force the crate exerts on the person is equal with the weight of the person.
$$F_N=m_{person}g=65\times9.8=637N$$
