The value of c is { c | c ∈ R, c ∉ {-1,0,2,12} }.
c is a number such that it is not in the set {-1,0,2,12} else we end up with a domain value having multiple range values, contradicting with the definition of a function.
Answer:
240
Step-by-step explanation:
The top triangle has an area of 40 while the bottom rectangle has an area of 200. Add them together and you get 240
90 × 7 = 630 , it's not hard, it's easy
Make a guess and check table to figure out if you do not know it off the top of your head.
The answer is 7 and 7