Which is the best books for class 9 Learning MathsAndScience Pls prefer i need opinion​

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

The reflexive property of congruence lets you say that ∠pqr ≅

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)