Simplify (10–2) 4. 10–8 10–6 –10–6 –108

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

she made 48 + y = a cookies.     not enough info is given to find the total.

x=25tan30=14.43 or the answer is b