Meryl needs to cut down 10.5 trees for every 5 cabins

2.1

Step-by-step explanation:

“For every” typically means and the equation 10.5 divided by 5 would = 2.1

Have a good one bud!

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

the answer is a if my teacher taught me correct