Trigonometric ratios in right triangles pls help

Find the vertex of the function given below y=x^2-6x+1

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

What number line represents the solution set for the inequality -1/2 greater than or equal to 4