Apencil box and a notebook together cost $6.28 the notebook cost $0.70 more than the pencil box . how much does the notebook cost?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

What is the difference between the points (4, 7) and (4, -5)? a. 0 units b. 2 units c. 4 units d. 12 units

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.