Answer:
9^y
Step-by-step explanation:
the way u write nine to the yth power, if y is something meet me in the comments!!
hope this helps, brailiest plzz!
We first add both 19.8 by 19.8 and therefore, that would give us 39.6.
42 - 39.6 = 2.4.
2.4 ÷ 2 = 1.2
1.2 would be the length of each sides.
