You can split this shape into two shapes; a rectangle on top and a horizontal rectangle underneath. The top rectangle would be 4 x 2 = 8 square units, and the bottom rectangle would be 7 x 1 (3 - 2) = 7 square units. Now you just add these to get 15 square units. I hope this helps!
8
2=1/4 of total
divide 2 by 1/4 and you get 8
well, rational = fractional, namely something you can write as a fraction, well, anything between -1 and -2 is just less than -1 so
![\bf \boxed{-2}\dotfill \stackrel{-1-\frac{1}{4}}{-\cfrac{5}{4}}\dotfill\stackrel{-1-\frac{1}{10}}{-\cfrac{11}{10}}\dotfill \stackrel{-1-\frac{1}{99}}{-\cfrac{100}{99}}\dotfill \boxed{-1}](https://tex.z-dn.net/?f=%5Cbf%20%5Cboxed%7B-2%7D%5Cdotfill%20%5Cstackrel%7B-1-%5Cfrac%7B1%7D%7B4%7D%7D%7B-%5Ccfrac%7B5%7D%7B4%7D%7D%5Cdotfill%5Cstackrel%7B-1-%5Cfrac%7B1%7D%7B10%7D%7D%7B-%5Ccfrac%7B11%7D%7B10%7D%7D%5Cdotfill%20%5Cstackrel%7B-1-%5Cfrac%7B1%7D%7B99%7D%7D%7B-%5Ccfrac%7B100%7D%7B99%7D%7D%5Cdotfill%20%5Cboxed%7B-1%7D)
The answers are D and E, I took this quiz as well