Evaluate the expression:
n = 4
n + 7 =

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.