Explain the meaning of the following

1) A scale on a map is 1mm:20 miles.

2) A scale on a drawing is 1in:5 feet.

3) The scale for a model house is 1:12.​

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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)?

Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. ralph charges $34 for every 4 hours of work that he does. who charges less? opinions: 1.they charge the same amount 2.jalen 3.ralph