Your restaurant bill came to $42. You want to leave a 20% tip. Determine the amount of tip.

$8.40

Step-by-step explanation:

$42 * 0.2 = 8.4

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47