What is the volume? Which option?

On a trip, you had to change your money from dollars to british pounds.  you got  560  pounds for  800  dollars.  which is a unit rate that describes the exchange

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

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