Tracy bought w kg of flour. She used 3 kg of it. If Tracy bought 15 kg of flour, how much flour did she have left?

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

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

If f(x)=x+7 and g(x)=1/x what is (fog)(x)