11 is 110 for x and y
12 is 90 degrees for x and y
13 is also 90 degrees for x and y
Ok, so this is a spelling sort of work sheet, you need to say each word aloud and if the A in the word is long, then put it in the long A box, if it's a short sounding A, then put it in the short A box.
Hope this helps >.<
Sn = n(n+1) = 100(101) = 10100
Answer:
13
Step-by-step explanation:

0r
4 + (6/2)^2 = 4+ 3^2 = 4+9 = 13
Answer:
9m⁸n²
Step-by-step explanation:
(3m⁴n)² Remove parentheses
= 3²m⁸n² Square the 3
= 9m⁸n²