Ill give brainiest please quickk

What is the y intercept of f(x)=(1/2)^x?

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x