Find the GCF of 9x and 12x

a) 3x
B) 108x
c) 36x
D) 9x

What is the area of triangle abc if a = 8, b = 11, and c = 15?

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

The suare root of 9x plus 7 plus the square rot of 2x equall to 7