How can you use a number line to compare and order numbers

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.