Allen E.

what does k equal?

A coin purse contains nickels and quarters.There are 7 more nickels than quarters in the coin purse. The total amount of money in the coin purse is $12.65. How many of each are in the coin purse?

Jake bought a book in a city with an 8 percent sales tax rate. If Jake paid 59.40 for the book after tax, find the price of the book before taxes.

The equation is T(x) = 8 over x²-49      T(x)=8⁄x²-49     Getting stumped and coming up with (-∞,-7) ∪ ( 7, ∞)

lim as x tends to positive infinity (x+√x)/(x2+x+1)

The doubling time of the balance for a money market certificate of deposit (CD) is 25 years. By what factor does it grow in 60 years?

Let f(x) = x^2. Find f(2x) − 2f(x) for x = -3.   Here are the answer choices.    a. -18 b. -9 c. 0 d. 9 e. 18   Please explain and thank you in advance!

Let g(x)=(x^(1/3))-3   what is g(x+1)=

domain of (x/1+x)/(1+(x/1+x))

Ant and Sarah both work at a telephone company .ant filled out 3/4 as many surveys as sara and together they filled out 35 surveys. how many surveys did ant fill out?

My pre calculus teacher is making us use her way of tangent function graphing using    Undefined, (-1, 0, 1, Undefined so basically finding your maximas and minimas which is easy enough for... more

My teacher told me I can graph this with my graphingb calculator but I can't seem to get the correct inequalities for 1. X^4-10x^2+9<0 and 2.x^5+5x^4-4x^3+3x^2-2>0