Question is in picture.

. i need fast. will mark brainliest!
i also have another question on the same topic, so if you could with both that would be greatly appreciated!

Step-by-step explanation:

Having the system of equations in its simplest form

If

then the system of equations has infinitely many solutions.

If

then the system of equations has no solution.

If

then the system of equations has one solution.

We have the equation

Convert to the standard form Ax + By = C:

             add 2x to both sides

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

it would take 7/10 of an hour too fill the pool.

step-by-step explanation: