What is the angle of rotation from arst to ar'st? assume that the center of rotation is the origin.
a 180'clockwise
b. 90° clockwise
c. 90 counterclockwise
d. 270° counterclockwise

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)