Estimate the sum or difference.
1. 4/6+1/8=
2. 2/6+7/8=
3. 5/6-3/8=
4. 4/6+3/8=
5. 7/8-5/6=
6. 1/6+7/8=

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

i dont know sorry

step-by-step explanation:

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

98%

step-by-step explanation: