Solve the system. what restriction, if any, must be placed on the constants to make sure that there is a unique solution to the system? ax + y = b bx + y = a a) (1, a + b); a ≠ 0 b) (1, a - b); no restriction c) (−1, a + b); a ≠ b d) (−1, a - b); b ≠ 0

1/3(x-10)=-4 solve for x with steps

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

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212