Is 10x + - 42 + 31x equivalent to - 21x + - 42

What is the reason for statement 4 in this proof?

Andrew drew two same rectangles and divided them into the same equal parts. He shaded 1/3 of the rectangle and 1/4 of the other rectangle. What is the least number of parts into which both rectangles could be divided?

The expression 3.25b + 2h gives the cost of b burgers and h hot dogs. what is the cost of 4 burgers and 6 hot dogs?

A farmer plants twice as many acres of wheat as corn on his land. If he plants no more than 36 acres, what is the greatest number of acres that can be used for corn? 12 acres 18 acres 24 acres 3 acres

The square root of a number is between 8 and 9. Which of the following could be the value of that number? Select all that apply. A) 8.6 B) 74 C) 80 D) 81.5

Solve the quadratic equation by completing the square. 4x2 + 8x - 7 = 0

Prime factorization practice All factors 1. - 25 2. - 49 3. - 7 4. - 13 5. - 24 6. - 48 7. - 168

Anoki bought 360 millimeters of fabric. How many centimeters of fabric does Anoki have?

What is 32.697 rounded to the nearest one?

Word problem to represent 0.90