ONE HUNDRED POINTS!!
Which is the correct second step for solving the equation (x+3)^2-4=18 ?
A. sqrt(x+3)^2 = ±sqrt(18)
B. sqrt(x+3)^2= ±sqrt(22)
C. sqrt(x+3)^2 = sqrt(18)
D. sqrt(x+3)^2 = sqrt(22)

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.

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab