Graph parallelogram STUV with S(-8, 2), T(-7, 7), U(-1, 10),
V(-2,5), and its image
after a 90° counterclockwise
rotation about the origin.
What are the
coordinates of S?

Write the equations in logarithmic form 9^4=6,561

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.