A teacher had 18 red pens if the ratio of red pens to blue pens she owned was 3:5 how many pens did she have in total

A company performs linear regressions to compare data sets of two similar products. If the residuals for brand A form an increasing curve, and the residuals for brand B form a U-shaped pattern, what can be concluded? A.

A city's population is currently 150,000. If the population doubles every 9 years, what will the population be 18 years from now?

Which of the quadratic functions has the narrowest graph? y=1/3x^2 y=-3x^2 y=1/7x^2 y=-4x^2

43,000 rounded to the nearest thousand

At the restaurant you only have $30 to spend on dinner. in addition to the cost of the meal you must pay a 8% sales tax and leave a 20% tip. what is the most expensive item you can order?

Round 45,122 to nearest ten thousand

Choose the most appropriate translation of the English sentence. The circumference of a balloon (which depends on the amount of air inside) is 1 meter.

Which number property does the following statement demonstrate? 3 • (-4) = (-4) • 3

P varies directly as q and inversely as y. One set of values is P = 0.064, q = 16 and y = 5. Find P when q = 12 and y = 10.

What is the median of 17 80 21 69 12