Can u tell me which is true and which is false

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

Find two numbers if their sum is 91 and the ratio is 6: 7?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is