D. 4x +7y
3x+5y+x-2y
x is also another way to say that there is 1x
4x + x (or 1x)= 5x
3y and 7y have the same variable
7y+3y=10y
Hence number D
Answer: $263.75
Step-by-step explanation:
5.5= 0.055
250x.055=263.75
The answer:
Explanation to your question:
Since the sin of theta is 0.3, we can reasonably deduct that the opposite side to theta has a ration of 3 to 10 to that of the hypotenuse. Thus, the adjacent side to theta, using the pythagorean theorem, will be root91. Therefore, since the cosine of theta is the adjacent/hypotenuse, we get root 91/10