I am currently learning Complex Numbers, and I know nothing. so any info on this?

In 2008, there were 6.7 * 109 people living on earth. What is that number in standard notation? A.) 6,700,000 B.) 6,700,000,000 C.) 67,000,000 D.) 67,000,000,000

Frank earns $7.00 for clearing weeds from someone's lawn. he pulled weeds from nine of his neighbors' lawns last month. how much did he earn?

The area of a square carpet tile is 900 square centimeters. what is the length of one edge of the tile in centimeters

A piece of wood 6m 20cm long is marked off into 0.1 m lengths. how many 0.1m lengths are there?.

The experimental probability of a coin landing on heads is 7/12. if the coin landed on tails 30 times, find the number of tosses.

The bike rental company has determined that they will charge based on the nearest half hour. If Michael rented a the bike for 5.5 hours how much would that cost?

Dusty planted a rectangular garden that had a perimeter of 36 yards. the length of the garden is 6 feet longer than twice the width. what is the length of the garden in feet?

A bicycle club conducted a survey to find out which city bicycle path was most popular. Sixty of the club's 497 members were chosen at random and asked which bike path they liked the most. The club made a table of the results.

A cardboard box is open at 1 and it is shaped like a square prism missing one of its Square bases the volume of the prism is 810 cubic inches and its height is 10 inches

Simplify using order of operations 17-5⋅ (3-4) + (-8) ⋅ (-3)