The difference of three times a number and nine is thirty six. find the number

Graph the equationy= x+3[tex]y = x + 3[/tex]

Acredit union pays 5% annual interest, compounded daily, on savings deposits. find the value after one year of $500 deposited in this account. $525.64 $25.64 $20.40 $520.40

Which best explains why this triangle is or is not a right triangle ?