Which of the following systems is dependent?

x - y = 2 and x + y = - 2

x - y = 2 and - 2x + 2y = - 4

x - y = 2 and 3x - 3y = 2

x - y = 2 and - x - y = - 2

2 friends equally shared 5 cookies. How many cookies does each friend get

147 inches equals how many feet and how many inches?

A rental car company charges a base fee of $40 plus $0.25 per mile for the first 100 miles the car is driven. The company charges the same base fee plus a reduced price of $0.18 per mile for cars driven over 100 miles.

A box contains 15 balls numbered 1 through 15. Two balls are drawn in succession without replacement. If the second ball has the number 4 on it, what is the probability that the first ball had a smaller number on it? An even number on it?

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Lynda is flying her kite at the end of a 40m string. The string makes and angle of pie/4 with the ground. The wind speed increases and the kite flies higher until the string makes an angle of pie/3 with the ground.

What is the sum of the angles of a polygon with s sides is 2,520

Brooke is a high school graduate and makes $28,150 annually as an office assistant. Jake is acollege graduate and makes $31,380 annually as acustomer service manager at a clothing store. what is the difference in salary after 5 years?

Dilating a triangle changes the size of the triangle but does not change its shape. true or false?

Is it easier to add or multiply fractions? Explain your answer and give an example of each