What is the answer to

2x – 3 = -3 + 2x

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

How many solutions does the nonlinear system of equations graphed bellow have?

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.