The school store sells packs of 12 pens for $2.40. which is not a unit rate to describe this sale? a. 20 cents per pen b. 5 pens per dollar c. 2.40 dollars per pack of pens d. 120 pens per 24 dollars

answer is

c) 4

step-by-step explanation:

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.