Answer:
A. j > 11
B. x ≥ 8
Step-by-step explanation:
For A if 7j is greater than 77, then j has to be more than 11. 7 x 11= 77.
For B x has to be greater or equal to 17, and 8+9 is equal to 17.
Answer:
Point R in coordinate (graph)

Step-by-step explanation:
According to the graph, distance betwen QR=(Y2-Y1) = 40-(-30) →

2x+2≥20
2x≥18
x≥9
closed circle on 9 because of the = in ≥ and the line going off to the right
please ask if you need more information or clarification
Using the shortcut for binomial expansion, which still took 45 minutes, I got 23-26. The coefficient on the x^6 term is 34,020; the coefficient on the x^4 term is -495; on the x^7 term it's 1800; on the x^3 term it's 337,920. I'm pooped. The rest is factorial notation, kinda the same thing, but...
Answer$32
Step-by-step explanation:
125 divided by 2 = 31.25 +00.05+32