Determine whether each ordered pair is a solution of y = x + 6.
1. (3,8)
2. (5, 11)
3. (13,7)
4. (9,15)

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?