Sarah drove 100 miles on 5 gallons of gas. write a proportion to find out how far she can travel on a full 22 gallon tank. a.) 100/5=22/x b.) 5/100=22/x c.) 5/100=x/22 d.)x/100=5/22

100 miles/5 gallons=x miles/22 gallons

Reverse:

5/100=22x

The correct answer is B.)

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.