9-7=9 (-7) is this true or false with explanation

What are all the quadrilaterals for a rectangle

Nick weighs 3 times as much as his brother jack. Both weights are whole numbers. The sum of their weights is less than or equal to 160 pounds. What is the greatest possible weight in pounds for each person

Solve the inequality, - 3 < n - 8

The square of the product of a number and 4

Describe and correct the error : |-13| - |13| = - 13 - 13 = 26

Five notebooks cost $20. at this rate, how much would 4 notebooks cost

97 people are surveyed and 32 of them agree with closing campus for lunch. Is it discrete or continuous

Elapsed time in minutes Start time 3:10pm end time 4; 00pm

What does 2x (5+2) x2 equals

What three even numbers add up to 54? How many different answers can you find? Did yo see patterns in your answer?