If the simple interest on $4,000 for 7 years is $1,960, then what is the interest rate?

is there answer choices?

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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but which class are u may know that first

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.