The answer is $85.50
57 x 50% or 57 x .5 = 28.50
Add $28.50 to $57 and you get $85.50
2/5 is equivalent to 4/10 so at the end of February 4/10 was used up
And at the end of January, 3/10 was used
so 4/10 + 3/10 = 7/10
At the end of February, 7/10 of the wood was used
Each was 10 inches because she had 95 and 95-15=40 divided by 4 = 10
Answer:

Step-by-step explanation:
sinx = 
The hypotenuse = 25 since 7, 24, 25 ← Pythagorean triple
Hence
sinx = 