Please I really need help I’m in a test right now pls guys

12x + 50

Y - intercept = 50

Slope = 12

Step-by-step explanation:

The y - intercept represents the original registrational fee even if you have never taken lessons.

The slope represents what you have to pay every time you take a lesson.

hkhkhkhkhkhkhk

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92