Step-by-step explanation:
A) width × length = area
300 ft × l = 48000 sq ft
B) l = 48000 ÷ 300
l = 160 ft
That answer is correct, 9x + 4 -5y. Only like terms are the x terms and we add 3 and 6 together.
11 is 110 for x and y
12 is 90 degrees for x and y
13 is also 90 degrees for x and y
Because the ones place is under 5, we round down, and 392 becomes 390 when rounded to the nearest 10