10 + 10? Is 100 or 20, not sure

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c