How do you solve for the percent increase or decrease of "from 45 to 63"

There are 14 juniors and 16 seniors in a chess club. a) From the 30 members, how many ways are there to arrange 5 members of the club in a line?

Item 5 Item 5 You are earning an average of $47,400 and will retire in 10 years. If you put 20% of your gross average income in an ordinary annuity compounded at 7% annually, what will be the value of the annuity when you retire?

How do I solve two-step equations ex. 3g+5=17

Write an equation that can be described by the statement: y is equal to 1/3 of x

For a set of data, r = 0.27. Which is true about the correlation of the variables?

the half life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. starting with 165 grams of radioactive isotope how much will be left after 4 half lives.

S the inequality below sometimes, always, or never true? - 2 (2x + 9) > - 4x + 9 A. always B. sometimes C. never

A city manager wants to add a playground in a new city park. The rectangle below represents the plan for the dimensions of the rectangular playground. area = x^2 + 18x + 45; Width=W; Length = x+15 a.

When listing multiples of 8 and 10 what multiple will they both be the same?

I saved $360 for one year. the bank paid me 20% interest. how much do i now have