Alguem sabe aonde eu encontro um livro do bussab?

Nine more than four times a number is the same as one less than twice the number. find the number?

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