A solid box with height 40cm, width 50cm and length 70cm needs to be painted. The paint costs £0.02 per cm2. How much will it cost to paint the outside of the box?

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Are the corresponding angles congruent? explain why or why not.