Step-by-step explanation:
First, work out the difference (decrease) between the two numbers you are comparing. Next, divide the decrease by the original number and multiply the answer by 100. If the answer is a negative number, this is a percentage increase.
Squares have them due to all sides and angles being congruent
Answer:

Step-by-step explanation:

Subtract:- 15- 0.05= 14.95
Multiply:-


Answer:
2*2*9+4*12*3=36+144=180
Step-by-step explanation:
Answer:
2\10
Step-by-step explanation:
1\2 = 5\10
7\10 - 2\10 = 5\10