At the restaurant, the cost of the meal before tax was $40. The tax is 8.5%, and Sheri wants to leave at least an 18% tip. Explain how to approximate the total cost of the meal.

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.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.