2 x (5+3 x 2) + 4
what’s the answer

Find the quotient. 50a2 – 98b2 -5a +7b

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

Use sigma notation to represent the following series for 9 terms.