Question is: john has 10 friends at school so how many friends does he have at school?

it is my hw and find it difficult. i look up on google but no answer so need

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle