5. A kilogram of rice costs 60p. How many kilograms can you buy from £ 7.20? What is the answer and don't upload in a link please ​

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

X+ y = 5 ; x - y =3 solve using linear combination