Peyton is building a model tower using plastic bricks. The height of the tower is proportional to how many layers of bricks he uses. He knows after 15 layers of bricks that his tower is 24 centimeters tall. Peyton wants the model to be 120 centimeters tall. How many layers of bricks does Peyton need to use to reach 120 centimeters tall?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Can some one explain this i got sent this. is this a threat i’m scared

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?