Write the sum using summation notation, assuming the suggested pattern continues.100 + 121 + 144 + 169 + + n2 +

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.