However 123 is not snakelike (2 is greater than 1 but not 3) and 91772
is not snakelike (7 is greater than 1 but not 7).
a How many 4-digit snakelike numbers contain each of the digits 1, 2,
3, 4 exactly once?
b How many 3-digit snakelike numbers have 6 as their middle digit?
c A 7-digit snakelike number starts with digit 9. Explain why its last
digit cannot be 0.
d A 4-digit snakelike number starts and ends with the same digit. The
positive differences between pairs of adjacent digits are written down
in order to form a 3-digit number. Explain why this 3-digit number
is always snakelike.

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2