Answer:
a. 36 b. 217.1
Step-by-step explanation:
l x w= 6 x 6 = 36
14x21=294
Area of a circle = pi r squared
7x7=49
49/2=24.5
24.5 x 3.14=76.93
294-76.9=217.1
Choice A is one of the answers. Nice work. This is because x+x+x turns into 3x.
Choice D is the other answer because 2(x+1) + x = 2x+2+x = 3x+2. You can find this through trial and error. Or you could graph y = x+x+x+2 and y = 2(x+1)+2 to find that they are the same exact identical diagonal line. A non-graph approach would be to set up a table of values to see that the two tables are identical.
Over is to under
Think about is the oopsite
