Answer:
5
Step-by-step explanation:
3x + 12 = 27 3x = 15 x = 5
Answer:
you spend 1 1/2 hours on base running.
Step-by-step-
Every 1.5 hours you spend 1/4 an hour on base running.
6/1.5=6
6x1/4= 1.5
Answer:
D
Step-by-step explanation:
The hypotenuse is x and the adjacent side to the given angle is 54
cos20° =
= 
If you're looking for voltage at 6.6 amps, your equation would be V = 6.6R, choice D.