At a community center the ratio of swimming teachers to students is 1: 4

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.