Numbers to choose from -7, -2, 0.5, 1, 2, 7

I can see the y value decreases by 2. But I don’t understand what numbers satisfy the expression.

# n + #

Is confusing for me. Please help. Thanks.

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

True or false? a circle could be circumscribed about the quadrilateral below.