A triangle contains vertices A (-3, 2), B (1, 2), and C (-4, -2). If ∆ABC is rotated 90° counterclockwise around the origin, what are the coordinates of the transformed figure ∆A’B’C’ ?

A ’(-2, 3), B ’(-2, 1), C ’(2, -4)
A ’(-2, 3), B ’(-2, 1), C ’(2, -4)

A ’(-3, -2), B ’(1, -2), C ’(-4, 2)
A, ’(-3, -2), , B, ’(1, -2), , C, ’(-4, 2)

A ’(-2, -3), B ’(-2, 1), C ’(2, -4)
A, ’(-2, -3), , B, ’(-2, 1), , C, ’(2, -4)

A ’(-3, 2), B ’(1, 2), C ’(4, -2)
A, ’(-3, 2), , B, ’(1, 2), , C, ’(4, -2)

/is used for a fraction 1) if x = 2/3 and y = 3/4, what is the value of (x + y) (x/y) expressed as a common fraction? 2) what is the least positive integer greater than 1 that leaves a remainder of 1 when divided by each of 2, 3, 4, 5, 6, 7, 8, and 9? 3) the ponde family's powerjet pumps 420 gallons of water per hour. at this rate, how many gallons of water will it pump in 45 minutes? 4) kim's insurance company pays 80% of the cost of all prescription medication she purchases in a year beyond the first $250 worth of prescriptions. her prescriptions for this year cost a total of $570. how many dollars of this amounts will kim's insurance company pay?

Pls! does anybody know a shortcut for answering these types of questions in the future?

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?