PLEASE HELP URGENT PLEASE

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

G(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.