Line EO has the greatest slope.
18 . D
If f(x) equals both 5x – x^2 and 6 for some particular value of x, then you
can set 5x – x^2 equal to 6 and solve for x:
19 . E
If 25% of a number is 36, then that number is 36 times 4, or 144. Forty
percent of that is (0.40)(144) = 57.6.
20 . C
The area of the smaller square is 5, so each side is Diagonal
divides the square into 45–45–90 triangles, so the hypotenuse BD equals
one of the legs times