Hello (Happy).. I only want answers of these two question!!! Please dont solve these question .... Thanks (Bow)

QUESTION :for the distribution with density function

f(x,y)={1/8 (6-x-y) 0<x<2 2<y<4

0 elsewhere

Evaluate:

1) P(X<1,Y<3)

2) P(X+Y<3)

3) P(X<1 | Y<3)

QUESTION : for the distribution with density function

f(x,y)={1/4x (1+3y^2) 0≤x≤2 0<y<1

0 elsewhere

Evaluate:

1) P(1/4<X<1/2 | Y=1)

2) P(1/2<Y<3/4 | X=1)