Mrs. Welch and her 7 children are shopping at a local grocery store. Each of the children will be allowed to select one box of cereal for their own from the 8 different boxes of cereal available (there are no two the same). In how many ways can the selections be made?

I am pretty sure the answer is 40,320

Step-by-step explanation:

If you do 8x7x6x5x4x3x2 it equals 40,320

I wrote the equation B+12+B=90. If angle A is 12 degrees greater, that means if you take away the difference of twelve, they will be equal. Since complementary angles all add up to 90 degrees: A+B=90-12. A+B=78, and 78/2 is 39. This means A is 51 degrees and B is 39 degrees.