John played a note on his tuba that vibrated the air 70 times per second. If he played the note for 5 seconds, how many times did the air vibrate?

Dinner cost $80. If Jason left a 15% tip, how much $ did he leave for a tip?

Total principal in both accounts

Joe is making a recipe that calls for 3/4 teaspoon of cinnamon. His only measuring spoon holds 1/8 teaspoon. How many times will he need to fill his measuring spoon to get enough cinnamon for the recipe?

Bianca filled 2 same-sized jars with flavored popcorn as a gift. She wants to glue a piece of ribbon around the edge of each lid. The radius of each jar lid is 4 centimeters.

Brian had 42 class fair tickets to sell. He sold 5/6 of the tickets. How many tickets did he sell?

Simplify the expression. (1.08*10-3) * (9.3*10-3) : 0.1 enter your answer in scientific notation in the box.

The petimiterof a rectangle is 110cm. the length is 1cm more than twice the width. write two equations that would be used to solve the system

The area of a classroom for student is 24 sq. unit. If an area of 1/6 by 1/4 is reserved for one student, how much of the total area is reserved?

Solve 2 (x+3) = x-4 im not sure what to do with this question

Input positions. 1 2 3 Numerical expressions 9x1 9x2 9x3 Output value 9 18 27 What would be the value of the number in the thirtieth position? A 270 B 230 C 117 D 33