1. x + 2y = 11
2x + 3y = 18
matrix form

Given: lkm jkm, clmk prove: alkmajkm jmk. choose the word that completes the sentence correctly. proof: lkm jkm and lmk * umk are given. km km by the property of congruence. equivalence symmetric reflexive transitive

Walter is to make cookies for a basketball tournament. he's made 15 cookies so far. his coach asked him to make at least 20 cookies but no more than 55. solve the inequality and interpret the solution. 20 ? x + 15 ? 55

Use the chart to multiply the binomial by the trinomial. what is the product? y3 + 27 y3 – 27 y3 – 6y2 + 27 y3 + 6y2 + 27