How do i solve this by using substitution? y=4x-9y=x-3

What is the base of 1/9 to the power of 2

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Drag each equation to the correct location on the table. for each equation, determine the number of solutions and place on the appropriate field in the table.