Answer:
9.9
Step-by-step explanation:
Let the side of ZX = x
4/8 = x/19.8
Cross-multiply
8x = 79.2
Divide both sides by the coefficient
8x/8 = 79.2/8
x = 9.9
It’s 28 because you minus a negotiable which means you add it
Answer:
9(c^7)
Step-by-step explanation:

c^-4 is equal to 1/(c^4), so 1/(c^(-4)) is c^4.
Answer:
25 = b
26 = c
Step-by-step explanation: