4.) simplify the expression.
tan ( u - π / 4 )
a.) cot u
b.) tan u -1 / tan u + 1
c.) ( tan u -1 ) × ( tan u + 1 )
d.) tan u
e.) sin u

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total