Answer:
i believe it is skewed. sorry if its wrong
Step-by-step explanation:
Simplifying the expressions:
14.
i.e. = and = 2 and -1.
15.
i.e. = = -3
16.
i.e. = and = -1 and
17.
i.e. =
18.
19.
20.
i.e. = and = -4 and 1.
1149
14
-6
a. 3 $3.69