Which two expressions are equivalent? a. 7(3 + x) and 7• 3 + 3 • x

b. 7 + 3 + x and (7 + 3) + x

c. 7 • x • 3 and 7(x + 3)

d. 7 ÷ (3 – x) and 7 ÷ (x – 3)

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

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?

Larry wants to buy some carpeting for his living room. the length of the room is 4 times the width and the total area of the room is 16 square meters. what is the length of the living room