Answer:
a=21
AB=23.9
BC=19.5
CD=(23.9)
AD=19.5
Step-by-step explanation:
Each pair of parallel sides are equal in a parallelogram. Sense both pairs use the same variable we can just choose the easiest to solve which would be:
a-1.5=19.5
add 1.5 to both sides
a=21
now substitute 21 in for a in each equation.
AB=CD so
AB=23.9
BC=AD so
BC=19.5
CD=(21)+2.9 so
CD=(23.9)
AD is given so
AD=19.5
Answer:
The next number in the sequence is 36.
Step-by-step explanation:
Consider the provided sequence.
4, 9, 16, 25
The number 4 can be written as 2².
The number 9 can be written as 3².
The number 16 can be written as 4².
The number 25 can be written as 5².
The general term of the sequence is: 
Thus, the next term will be:



Therefore, the next number in the sequence is 36.
<h2>
Greetings!</h2>
Answer:

Step-by-step explanation:
If 84% are fiction, then the fraction of these are simply the percentage over 100:

Simplified down by dividing by 4:

<h2>Hope this helps!</h2>
Answer:
21/5
Step-by-step explanation:
Next year there will be about 468 students, to get this answer you multiply 0.04 × 450 to get 18. You then add 18 to 450 to get 468.
Hope this helps!