Answer:

Step-by-step explanation:

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%
Answer:
Because
Step-by-step explanation:
It goes into 1,3,5 and 15
A prime number only goes into 1 and itself
Answer:
165*6+53+792= 990+845 = 1,835
Step-by-step explanation: