Answer:
140?
Step-by-step explanation:
40 percent of 350 is 140 so I assume its 140.
The answer to the problem is 17
You have to multiply by a -1 both sides,
it would be 10 1/2
QUESTION 1
We want to solve,

We factor the denominator of the fraction on the right hand side to get,

This implies


We multiply through by LCM of


We expand to get,

We group like terms and equate everything to zero,

We split the middle term,

We factor to get,





But

is not in the domain of the given equation.
It is an extraneous solution.

is the only solution.
QUESTION 2

We add x to both sides,

We square both sides,

We expand to get,

This implies,

We solve this quadratic equation by factorization,





But

is an extraneous solution
Domain are the values of x, range are the values of y