Yesterday, Robert's Doughnut Shop sold 1/3 as many chocolate doughnuts as cinnamon doughnuts. If they sold 5 trays of cinnamon doughnuts, how many trays
of chocolate doughnuts did they sell?
Write your answer as a fraction or as a whole or mixed number.
trays

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota