A person standing d = 144 centimeters from a mirror notices that the angle of depression from his eyes to the bottom of the mirror is a = 13°, while the angle of elevation to the top of the mirror is b = 12°. Find the vertical dimension of the mirror. (Round your answer to the nearest whole number.)

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Which statement about perfect cubes is true

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.