A poll of 200 senior citizens asked about the types of
electronic communication they used.
Find the joint and marginal frequencies.
(Round to the nearest hundredth)
Uses Text Messaging
Yes
No
34 1 132
22
12
Uses Yes
Email No
Uses Tout Me
Uses Text Messaging
Yes
No
Total
11216
Us Yes12
Total
23
Choice D
Choice B
O
Choice C
Choice A
O

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)) =

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?