Sakura has a birdhouse with rectangular walls, a rectangular bottom, and a rectangular entry, like the one modeled below. She will paint the four outside walls but not the bottom or the roof of the birdhouse. What is the area that Sakura will paint? 140 in.2 300 in.2 160 in.2 320 in.2

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

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?