I think you mean a scaler quantity.
a scaler quantity is something that is measured without a directional component to it.
ie. mass, temperature, speed
it could be negative value but the negative means its value. you can use a scale to measure scaler quantity.
...a type of commitment in which the parents of a boy and agirl agreeon having them marry.
According to the information available on this excerpt, a betrothal is a promise which can be later modified, in which the parents of a boy and a girl promise to marry them. This could also be a definition of arranged marriage.
4 they name ways that skin is important to the body’s health
