Answer on the second photo with the numbers 3,4 and 5:
6 square
Step-by-step explanation:
3 times 4 : 2 =
12 : 2 =
12 : 2 = 6 square
2x+3x -9. You can simplify this to 5x-9.
What is 8 meters increased by 28%?
Well, first, you need to convert 28% to a decimal by moving the decimal two to the left by dividing by 100
28÷100=.28
or
28%⇒28⇒.28
Then you multiply
8 meters times .28

Then you add 2.24 to 8m (since its the original number)

Your answer is 10.24m
This is true because it is an unknown number so it is replaced by a variable.