The value of x for the exponential function f(x) = e^x is a set of real numbers?true or false

What is the range of the data below? .8090100

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r