The incomplete work of a student to solve an equation is shown below: step 1: 3x 12 = 3 step 2: ? step 3: x = −9 ÷ 3 step 4: x = −3 what is the missing step 2? 3x = 9 3x = 15 3x = −9 3x = −15

(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

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or