If p(x)=x^2-1 and q(x)=5(x-1), which expression is equivalent to (p-q)(x)

What is the measure of angle afe? 79 81 91 99

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.