Answer:
k > -9
Step-by-step explanation:
Subtract 12 from both sides as we want to isolate k-
30 - 12 = 18
-2k < 18
Divide both sides by -2
18/-2 = -9
k > -9
Answer:
(- 9, 2)
Step-by-step explanation:
Substitute x = - 9 into the equation and solve for x
4(- 9) + y = - 34
- 36 + y = - 34 ( add 36 to both sides )
y = 2
Thus (- 9, 2) satisfies the equation
Part A 60x3=180
5x30=150
150+180=330 sry only doing part A
