Which is bigger 1/7 of 14 or half of 36

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

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

Use the graph of the sine function y=2sinθ shown below