Question

please help me to solve these questions please​

Answer 1

Step-by-step explanation:

ok sis I solve your problem

Answer 2

Answer:

D) 3:5

Step-by-step explanation:

X=2Y

Z=2Y

=X+Y

=2Y+Y

=3Y

and

=Y+2Z

=Y+2(2Y)

=Y+4Y

=5Y

now,

=(X+Y):(Y+2Z)

=3Y:5Y

=3:5