The scale on a 1:50 000 Ordnance Survey map indicates that 2 cm on the map = 1 km on the ground.
How many centimetres would 1km be represented by on a 1:25 000 scale map?

?cm

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?