The answer is B because 5 times x is 5x and 5 times 6 is 30. Since there is a subtraction sign, it would be equal to 5x-30
I can't really help you with what is in your house......
We know the cofunction identity

.
Thus, the tangent of 90° minus <span>θ also equals
5.</span>
Answer: 75
15 multiplied by 5 (how many times it takes 20 to get to 100) gives us 75 :)