80,000 scientific notation

Last year a married couple had their first two children - twins should they file their federal income tax return using the 1040EZ form instead of the 1040 form?

A store pays $120 for a television. The store sells the television for $300. Your classmate says that the markup is 150% because $180$120=1.50$180$120=1.50. Is your classmate correct?

Jenny's pizza is circular and has a 30 cm radius. Her slice creates an arc with a central angle of 120°. What is the area of Jenny's slice of pizza?

If j, k, and n are consecutive integers such that 0 < j < k < n and the units (ones) digits of the product jn is 9, what is the units digits of k?

A share of stock in a pharmaceutical company was worth $30.46 on Monday. On Wednesday, the stock price changed to $45.83. What is the net change in the stock price from Monday to Wednesday?

Cathy volunteered to collect cans for a school project. cathy collected 125 cans in 5 days. there were 6 volunteers including cathy who each collected about the same number of cans. about how many cans did they collect?

Two friends share 7 cookies equally. How many cookies does each friend get?

Ba=bc-2d. Express b in terms of c and d

What is the equation of the following line (1,9) (0,0)

Whats the sum of 3/4 - 5/16? 3/14 - 5/16