If you are solving for c you need to divide both sides of the inequality by -5 so c< (or equal to) -30/-5 or c<(or equal to)7
Answer:

Step-by-step explanation:
The function is
, whose first derivative is:

Let equalize the derivative to zero:





The solutions are given by the following inverse trigonometric function:

Answer:
Train A = 214
Train B = 86
Step-by-step explanation:
a + b = 300
a - b = 128
a + b = 300
a = 128 + b
(128 + b) + b = 300
128 + b + b = 300
128 + 2b = 300
2b = 300 - 128
2b = 172
b = 172 ÷ 2
b = 86
a = 128 + b
a = 128 + (86)
a = 214
They can put them into a chart called unexpected expenses.
This way they can take vacations or if they have car troubles
It would make their life so much easier
Answer:
Picture below answers your question.