What is 1505 divieded by 60?

What is the value of x when x + 7 = 21?

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.