Which statement is true about the given expression? 3x^2-11(2y+1)+4a. the "4" in the third term is a factor. b. the "2" in the second term is a coefficient. c. the "3" in the first term is an exponent. d. the "11" in the second term is a constant.

What is the product? (x2+3y+7) [yy+1)

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)