Each of the four shapes represents a positive whole number. The sum of the shapes in each r column is displayed at the end of each row and column. Using this information, determine the
numerical value of each shape.

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .

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?

Write as a product: ac^2–ad+c^3–cd–bc^2+bd