Find the intersection of the three sets: A = {–2, 7, 8, 9}, B = {–2, 5, 9}, C = {–2, 5, 9}. A {–2, 5, 7, 8, 9}

B null set

C {–2, 5, 8, 9}

D {–2, 9}

Find the solutions for a triangle with a =16, c =12, and b = 63º

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?