Worth 15 points

the perimeter of an equilateral triangle is represented by the expression 24m-15.9. then write three equivalent expressions for the perimeter.

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?