Answer:
C and E for sure
Step-by-step explanation:
Answer: A) 0.18 cm²
Step-by-step explanation:
To calculate the area of a parallelogram you must apply the formula shown below:

Where b is the base and h is the height of the parallelogram.
You know the values of the base and the value of the height.
Therefore, when you susbstitute these values into the equation shown above, you obtain the following result:

6V^2/3
294
I used googles calculator home that helps
the number of elements in the union of the A sets is:5(30)−rAwhere r is the number of repeats.Likewise the number of elements in the B sets is:3n−rB
Each element in the union (in S) is repeated 10 times in A, which means if x was the real number of elements in A (not counting repeats) then 9 out of those 10 should be thrown away, or 9x. Likewise on the B side, 8x of those elements should be thrown away. so now we have:150−9x=3n−8x⟺150−x=3n⟺50−x3=n
Now, to figure out what x is, we need to use the fact that the union of a group of sets contains every member of each set. if every element in S is repeated 10 times, that means every element in the union of the A's is repeated 10 times. This means that:150 /10=15is the number of elements in the the A's without repeats counted (same for the Bs as well).So now we have:50−15 /3=n⟺n=45
Uhmmmm is there a picture of the problem i’m confused