What are the coordinates of the endpoints of P'Q' after a counterclockswise rotation of 90° about point (2, 1)?
Select the two correct coordinates.
A. P'(-1,-6)
B. P' (2,-7)
C. P'(-2,7)
D. Q'(0, 1)
E. Q'(0, -1)
F. Q'(-3,2)

Acar traveling at 65 mph leaves 25 foot skid mark what is the ratio of the speed to length of skid mark (feet) in the simplest form

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?