Which is equal to a rotation of 90°ccw? A. 180°cw rotation about the origin
В. 270°cw rotation about the origin
C. 180ºccw rotation about the origin
D. 270ºccw rotation about the origin

В. 270°cw rotation about the origin

Step-by-step explanation:

We can rotate a total of 360 degrees in a circular pattern.

If we rotate x degrees in one direction, this rotation is equivalent to rotating (360 - x) in the other direction, because we would arrive in the same place.

So if we rotate 90 degrees in the counter clockwise direction, this is equivalent to rotating (360 - 90) = 270 degrees in the opposite direction, that is, in the clockwise direction.

So the correct option is B. -> 270°cw rotation about the origin.

$ 50

Step-by-step explanation:

Let the total amount that Alex had= $35

As per given information, 70% of her weekly paycheck automatically deposited into saving account .

According to question.

70 % of x= $ 35

x= $ 35 ×

x= $ 50

So, the total amount at paycheck this week is $ 50

Hence, the correct answer is $ 50