How many distinct permutations can be made from the letters of the word columns? how many of these permutations begin with the letter m? assume you must use all of the letters?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Write an expression that represent sarah’s total pay last week.represent her hourly wage with w monday 5 tuesday 3 wednesday 0 noah hours wednesday 8 only with w wage did noah and sarah earn the same amount last week?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *