Kevin paid $9.20 per hour. He worked 8 hours. He gave his mother 1/4 of his earnings. How much did Kevin have left?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points

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.