A company bought New Year's greeting cards to send to its valued customers. Forty-five of the cards they sent cost $2.40 each. Thirty-six of the cards cost $2.90 each. The remaining 28 cards cost $1.80 each. What was the total amount spent on these cards please help

15 points what is the end behavior of this graph? & what is the asymptote of this graph?

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z

The discrete random variables x and y take integer values with joint probability distribution given by f (x,y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x,y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).