How can you tell if a proportion is a true proportion

What is the p of 7/31?

Parker plans to buy boxes of tissues at $12 each and bowls at $4 each for his restaurant. 1) Write an algebraic expression to find the total cost of the tools if Parker buys x boxes of tissues and y bowls.

c) A firm is considering an investment that will earn a 6% rate of return. If it were to borrow the money, it would have to pay 8% interest on the loan, but it currently has the cash, so it will not need to borrow.

8 2/3m x 5 3/5m equals

An IT company plans to invest in a new game app for smart phones. Suppose there is a 20% chance that the company will lose $100,000, a 40% chance it will lose $75,000, and a 40% chance of a $250,000 profit.

Jessica is reading a book. She is able to read about 5 chapters each day. Assuming that, on average, each chapter contains 13.87 pages, which is a good estimate of the number of pages Jessica can read in 4 days?

70,000,000write the number in the form standard

A data set that consists of 33 numbers has a minimum value of 19 and a maximum value of 71. Determine the class boundaries using the 2 Superscript k Baseline greater than or equals n rule if the data are: a) discrete b) continuous

A scientist has a 120 mg sample of an unstable isotope. The amount of the substance remaining in the sample decreases at a rate of 16% each day. At the end of t days, there is less than 30 mg of the substance remaining.

A rectangular plot of land is to be fenced in using two kinds of fencing. Two opposite sides will use heavy-duty fencing selling for $3 a foot, while the remaining two sides will use standard fencing selling for $2 a foot.