If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d. x+y=2

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