142 houses can be built
71/2 reduces to 35.5
35.5/.25 = 142
Answer:
-108
Step-by-step explanation:
36x - 8y² when x = 3 and y = -6
8x=108
=8x(-6)(-6)
-6×(-6)=36
=8x36
=288
108
-<u> 288</u>
-108
Series would be: 1,3,5......99
Here, a=1, d = 3-1 = 2, l = 99
l = a+(n-1)d
99 = 1+(n-1)2
98 = 2n-2
2n = 100
n = 50
Sum would be Sn = n/2 (a+l)
50/2 (1+99)
25(100) = 2500
So, your answer is 2500
