Answer:
Step-by-step explanation:
x is greater or equal to 13
Percent increase=increase/original times 100
increase=26-21=5
original=21
so
5/21 times 100=0.23809523809523809523809523809524 times 100=23.809523809523809523809523809524
round
24%
so 24% increase
Answer:

Step-by-step explanation:
The diagonals of a rectangle always bisect each other. Therefore, we can set
:

Answer:
Step 1 should have a -2 substituted for both values.