Write the phrase as an expression the quotient of 18 and a number a

What is the range of this function? all real numbers such that y ≤ 40 all real numbers such that y ≥ 0 all real numbers such that 0 ≤ y ≤ 40 all real numbers such that 37.75 ≤ y ≤ 40

In what form is the following linear equation written y=9x+2

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.