Place Value and Triangle

I am a smallest one-decimal number. If you round me to the nearest whole number, I will be 150. What number am I?

Am I a polygon? why?

What is the place value of 7 in 89.7 ?

Value of 5 in 70.52 is 0.05. True or false?

I am a two decimal number. All of my digit is consecutive. The first digit is between 0 and 2. my last digit is the first digit plus two. What number am I?

What triangle am I?

Equilateral triangle has all angles with the same size, ..... degree.

What triangle am I?

65 tenths and 8 hundredths = ...

Round 8.5m to the nearest meter.

I am a three digit number. The sum of the digits is 15. I'm a triplet number. What number am I?

7tenths = ...