Find the derivative of y=x²+3x​

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

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

How do i put 3(x+7) in distributive property