Asquare playground has a perimeter of 120 yards. what is the length of a diagonal of the playground?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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?