Answer:
83
Step-by-step explanation:
<u>Formula for 13th term:</u>
t(13) = a + 12d, where a- first term, d- common difference
<u>Given</u>
<u>As per the formula for 13th term:</u>
To calculate the percentage,
75/250×100 = 30%
x=30
y=22.5
each of the corners are 90
3x=90
divide each side by 3
4y=90
divide each side by 4
x=22.5
-192
