How do you estimate21 * 78

How to write 15,409 in expanded form

When constructing parallel lines, how can you verify the lines constructed are parallel? t is being constructed based on the markings in the following diagram?

a total of 500 tickets were sold for a fundraising concert. Four times as many floor seats were sold than VIP seats. If each floor seat ticket sold for $10 and each VIP ticket sold for $45, how much money was collected?

What is the scientific notation of 3,482,000,000

Petro had $15 dollars. He spent $9 dollars on a book. His friend had $12 how much money did pedro have left

What is the limit in miles per hour? 55 km/h

Each day a small business owner sells 200 pizza slices at $3.00 per slice and 85 sandwiches at $2.50 each. Business expenses come to $60 per day. What is the owner's profit for a ten-day period?

A flagpole is 20 feet tall and its shadow is 8 feet long. A nearby building has a shadow 31 feet long. How tall is the building?

Whats $3316X8 estimate

How many terms are in the algebraic expression 2y + 3x - 5x2 - 9?