Answer:
a.
Step-by-step explanation:
I and IV only, are true proportions
S/175 =18/21
21s=18×175
21s=3150
s=150
b.
69/s =54/36
69×36 =54×s
2484=54s
s=46
4^0 + 2 x 3 - 2 = 5
2^2 + 10 - 3 x 2 = 8
9 + 3^2 - 1 x 4 = 14
please give brainliest
Slope = 2
(1,3) and (3,7)
m = (7-3)/3-1)
= 4/2
= 2
