9. an rsa cryptosystem has modulus n 391, which is a product of the primes 23 and 17. which of the following is suitable as an encoding key e? (a) 163 (b) 353 (c) 351 (d) 277 (e) none of these. 10. which of the following polynomials p(x) is complete over zalr? (a) z4+1 (e) none of these

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

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)) =

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?