5. For each of the following, prove that the relation is an equivalence relation. Then give information about the equivalence classes as specified: a) The relation ℛ = {(xx, yy) ∈ ℝ × ℝ: (xx − yy) ∈ ℚ } on ℝ. Describe the equivalence classes of 0; 1 2 ; √7. b) The relation = ��(xx, yy), (aa, bb)�: xx2 + yy2 = aa2 + bb2� on ℝ × ℝ . Sketch the equivalence classes of (1, 2); (4, 0). c) The relation = {(xx, yy) ∈ ℝ × ℝ: sin(xx) = sin(yy)} on ℝ. Describe the equivalence classes of 0; ππ 2 ; ππ 4

javeir earned 56 dollors more than kyle so kyle and javier had 14w but javier made 56 dollors more so 14w plus 56 equals 70w so kyle has 14w

step-by-step explanation: hope i plz give me brainliest with the points so this is not constant cause it says last week so its clearly not every week

the answer is d on edge

step-by-step explanation:

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90

not sure but it may be b, as i said i'm not sure.