Which of the following require proof in a logical system

Laura, Chau, and Jose sent a total of 152 text messages. Jose sent 4 times as many messages as Laura. Laura sent 8 fewer than Chau. How many messages did they each send?

For what value of b in the equation (2z + b) (z - 3) = 0 will a solution for z be - 4?

5/8 divided by 21/4 is?

How do you multiply a 2 digit by a 2 digit

A house costs 200,000. if it increases in value 4% each year, what is its value in 3yr?

Mrs. gauthier plans to take her class on 2 field trips this year there are 23 students in her class and each field trip will cost $5 per student use mental math to find the total cost for both field trips

Steven had $250. He bought some T-shirts at $8 each and had $q left. How many T-shirts did he buy?

Pearson math r 11-5 how many rectangles in all are in the design

At the skating rink, Sean and Patrick spent $17.45 on admission and snacks. They used one coupon for $2 off the admission. The snack cost $5.95. What is the regular admission cost for one?

Why is a savings account better than a checking account for saving money?