The length of a rectangle is 6 times longer than the width. the perimeter is 42. what is the width?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line