How is 24 not a square number

Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.