2. Exact form: 34/5
Decimal form: 6.8
Mixed number: 6 4/5
3. Exact form: 49/ 4
Decimal form: 12.25
Mixed number form: 12 1/4
9 is the product ..........
The answer is 10 units. This is because you have to find X where 2x+10 just the same with the other side of the triangle.the triangle is also known as isosceles triangle in which two sides are equal to each other. You just have to equate it to the x+3. So 4x+30=2x+10 so x=10 units.
If u round 87 its 90 and when you round 34 it is 30 then you add 90 and 30 and you get 120...
i hope this helped....
:) .........:)