An equivalent ratio would be 7:10 or 70:100 or 42:60 and so on...
42 is the answer
Explanation:
50% of 80 is half of 80 which is 40
Then you would add 40 with 5% of 40
What you would do then is 5% times 40 then you would change the 5% into a decimal which is 0.05 and multiply it by 40 , which would get u 2
Then you would add the price with tax
40+2 = 42
2.17720 × 10^2 is the answer
Sin ( theta ) = opposite / hypotenuse
sin ( 37° ) = 13 / x