Michael is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Michael has been adding money. Suppose that x and y are related by the equation y = 350+30x. Answer the questions below. Note that a change can be an increase or a decrease. For an increase, use a positive number. For a decrease, use a negative number.

1a What is the change per week in the amount of money in the account?

1b What was the starting amount of money in the account?

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.