Answer:
Step-by-step explanation:
B = {p , q , r}
Number of subsets = 
Her, n is the number of elements in the set.
Number of subsets = 2³ = 8
Answer:
what will I do here?
Step-by-step explanation:
sorry im still grade 3
Answer:
I'm pretty sure it's x = 12, -3
Step-by-step explanation:
You answer is false because the 25 is almost equal to 28 have a nice day
New length = 30x110% = 33cm
new width = 20x105% = 21cm
original perimeter = 30x2 + 20x2
= 60 + 40 = 100
new perimeter = 33x2 + 21x2
= 66 + 42 = 108
increase in perimeter = 108-100 = 8
percentage increase = 8/100 x 100% = 8%