Answer:
580
Step-by-step explanation:
4*100=400
4*40=160
4*5=20
add them all up, you get 580
No solution for the quadratic equation because of the √-20
You need to state more info, this isn't even a question
Answer:


Step-by-step explanation:
The functions, missing from the question are:


Required
Determine the domain
To get the domain, means we want to get the possible values of x.
(a)

Equate 3 - x to 0

Solve for x


From the calculated value of x above;
When x exceeds 3; f(x) = undefined
So: the domain is:

(b)

Equate 3x to 0

Solve for x

From the calculated value of x above;
When x falls below 0; f(x) = undefined
So: the domain is:

Y=3x-5 and passes through the point 5,10 should be 56