What is the first term of the arithmetic sequence shown? Blank, blank, blank, 13, 17, 21, 25.

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

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?