Maria is trying to decide which one of two winter coats she should buy. The blue coat usually costs $48 but is on sale for 25% off. The black coat usually costs $56 but is on sale for 40% off. How much less is the sale price of the black coat than the sale price of the blue coat?.

(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

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

(23*2)-12=x     x=34

step-by-step explanation:

step-by-step explanation: