Martin is sewing costumes for the school play. He needs 1/3 yard of ribbon for each costume. He has 12 3/4 yards of ribbon left. How many costumes can he finish?

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Could someone with number 1 and 2

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42