What is the sum of the
interior angles of a polygon
that has 21 sides?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Plz i beg u asap ! what is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.