which of the following correctly justifies statement 4 of the two-column proof? Prove angle 2 is congruent to angle 7

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?