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To solve for x, simplify both sides of the equation and then isolate the variable:

Hope this helps!☺
Answer:
Company A:
c = 40 + 2s
Company B:
c = 20 + 4s
Equal costs => 40 + 2s = 20 +4s => 4s - 2s = 40 - 20 => 2s = 20 => s = 20/2
=> s = 10
And c = 20 + 4s = 20 + 4(10) = 20 + 40 = 60
Step-by-step explanation:
1/2 b-39=101
+39 +39
1/2 b= 140
2(1/2) b= 140(2)
b=280
6. (A/pi = r^2)
7. [(P - 2l)/2 = w]
8. [C/(2pi)= r]
9. (2A/h = b)
10. (E/c^2 = m)
Answer:780000000000
Step-by-step explanation:7.80×10^7/1.0×10^4=?