This is the information I was given on my assignment:

Use the information below to answer the following questions for a two sector economy:

C = 950 + 0.3 Y

I = 30

where: C is consumption

I is investment

Y is Income

AE is aggregate expenditure

Ye isEquilibrium income

These are the questions I have to answer:

The value of consumption when Y=500 is ?

What is the value of Ye?

What is the value of the multiplier?

The value of savings when Y=400 is?

What is the value of AE when Y=200?

How do I solve these?