Find the measure of the arc or central angle indicated.
1)
50°
105°

Can you simplify 4/7? 24 points will be awarded!

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?

What is the solution of sqrt x+2-15=-3