Answer:
That's very simple 2^–1 is equal to 1/2 and 5^0 is equal to 1. Then add this two. 1/2+1 is equal to 1.5.
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y=mx+b
because the y=2x-1, so m=2
because we know (4.2), so we can bring it in to the function:
2=2x4+b
2=8+b
b=-6
So the other one is: y=2x-6
in other way it's 2x-y=6
Which means the answer is B.
Answer:
X = 5 is the correct answer
Step-by-step explanation:
14+4x+6= 8x
20= 8x-4x
4x=20
X= 5
Step-by-step explanation:
230+50+30+14x100=1710
18x100=1800
1800-1710=90
so therefore she covered all the costs and made a profit of £90
